Penis thickening with UGRS
Two terms that have been linked nationally and internationally for many years. Until well into the 2000s, doctors at today’s UGRS (from 2008) were almost the only ones who dared – through consistent quality and evidence-based work – to bring this operation out of the shady corner and into the mainstream. Not only did university hospitals refer their patients to us, but in 2014 the British Guardian described Germany as the “world champion in penis enlargement”. We hope that we have also promoted emancipation, as this organ affects both sides.
Currently over 600 penis enlargement operations per year speak for themselves.
Please read our patient information below:
If you are interested in a clear presentation in FAQ style, please click here for the summary.
(we have been active in rating portals for the first time since the end of 2025)
If you would like a more detailed description, please read on:
Who will treat me in Darmstadt?
Your doctors in the male intimate surgery section:
(In the middle: Prof. Littara; details about our doctors can be found here)
Evidence-based answers to your questions about penis thickening:
Which doctor should perform penis thickening surgery?
Why penis thickening is not a harmless procedure
Many patients believe that penis thickening with autologous fat is a simple procedure without risk. Irresponsible advertising promises made by doctors today have no scientific basis. Read more about this below under “Why don’t we use other techniques, such as hyaluronic acid?”.
Competent advice and the safe, effective performance of penis thickening surgery should only be carried out by a doctor who is personally experienced in this procedure.
Why is many years of experience essential?
The study situation on surgical penis thickening is poor and shows contradictory results. Further research and the creation of guidelines for penile thickening surgery are necessary. When performed with extensive experience and using evidence-based techniques, the results are very good, with low risk and high patient satisfaction (Citation: 1).
Why is not every doctor proficient in penis thickening?
Surgical penis enlargement is not included in the training catalog of a urology specialist (Citation: 2, 3). Neither is penile thickening.
The assumption by patients that every specialist doctor is trained in this operation is wrong. Permanent penile thickening is a highly complex specialist operation and also a niche operation.
When an experienced doctor, like the one we have in Darmstadt, operates and uses evidence-based methods of high quality:
- Very good results with penis thickening
- Low risk
- Very high patient satisfaction after penis thickening
Important scientific findings on penis thickening:
- Current studies emphasize the particular importance of the personal experience of the operating surgeon and correct patient selection. To prevent risks and achieve good and lasting results (Citation: 4, 5, 6, 7, 8, 9, 10)
- In penis thickening (usually as part of penis enlargement), the same technique produces very different results, depending on the surgeon (Citation: 9). This finding shows that an inexperienced surgeon is often to blame for a poor result.
- It depends on the personal case numbers of the surgeon, not on the case numbers of the clinic or the title of the doctor (Citation: 10, 11).
Risks? Of course - but controllable
Every medical procedure involves risks. However, thanks to our specialization, precise surgical technique and decades of experience, penis thickening is associated with a very low risk of complications. Our patients particularly appreciate the fact that we provide open and transparent information about possible side effects.
Conclusion: We focus on quality, sustainability and your long-term satisfaction with penis enlargement. That’s why we avoid trends and advertising promises. We also don’t use long-known techniques to sell you as a novelty. We focus on: safe, natural and permanent penis thickening. Evidence-based.
Your request to us
Your contact: Felix Jung
Intimate Surgery Office
Mon – Fri from 9.30 am – 7 pm
Alternatively, you can conveniently book an appointment online for a telephone consultation with one of our doctors.
or fill out our contact form:
Does the penis thicken even when erect?
Yes, penis thickening naturally also leads to more girth during an erection
Our experience and the application of the right evidence-based technique also leads to penis thickening in erection. This has been proven by independent scientific studies (Citation: 1).
We emphasize the importance of experience and competence for the result. Even when using the identical technique, different results are obtained depending on the doctor (Citation: 9)
What is our specialty?
The founding father of UGRS, Dr. Jörn Siana, who is responsible for penis enlargement, performed surgical penis enlargement as early as 1993 and played a decisive role in developing the modern technique for penis enlargement and thickening. He was socially criticized for years for performing this operation.
UGRS doctors and the UGRS team have 20 years of experience, expertise and skill in penis thickening compared to most other surgeons in Germany.
Milestones of our expertise:
- 1993: First surgical penis enlargement by Dr. Jörn Siana
- 2006-today: Over 8,000 documented penis enlargement operations
Our evidence-based treatment approach combines:
- Highest level of experience (8,000+ operations)
- Medical precision through evidence-based methods
- High-quality materials
- Human empathy
- Maximum discretion
- Specialized penis enlargement team
What thickening can we achieve?
Our method is based exclusively on the body’s own tissue. This allows us to achieve a natural result with penis thickening that is visually impressive.
Penis thickening: approx. 2.8 cm increase in girth (in aesthetic proportion to penis length)
We offer penis thickening as an outpatient procedure under local anesthesia with twilight sleep. Thanks to our “speed recovery” technique, you will be ready for everyday life again quickly after the penis thickening procedure.
Your advantages at a glance
- Permanent penis thickening without foreign materials such as silicone or filler
- Outpatient procedure with local anesthesia and twilight sleep (no general anesthesia required)
- Aesthetically natural result of penis thickening
What is the organizational procedure for penis thickening?
Transparency from the initial consultation to aftercare
Every penis thickening treatment begins with a detailed personal consultation. Together with you, we clarify your goals, discuss possible results and openly answer all your questions. Your decision on penis thickening should be informed and well-founded.
Before the operation
- Anonymous, free and non-binding advice, by telephone or e-mail
- Medical evaluation of your health situation
- Detailed consultation
- Discussion of your initial anatomical situation and medical history
- Clarification of the process and the exact procedure
The penis thickening procedure itself
- Duration: approx. 60 minutes
- Local anesthesia with gentle twilight sleep. Naturally performed by our experienced anesthetists. General anesthesia is possible on request.
- You can find out how we perform penis thickening surgery under the menu item "Our method"
After penile thickening surgery (on the day of the operation)
- Recovery time on site after the operation (approx. 1 hour)
- Return to the hotel (hospital stay possible but not necessary)
After the operation (day after)
- Wound control
- You will receive detailed aftercare instructions (e.g. abstaining from sport and sex for approx. 5 weeks)
- Follow-up appointments are not necessary but are of course possible at any time free of charge
Thanks to our special technique, many patients report minimal pain, rapid recovery and a high level of fitness for everyday life just a few days after the procedure.
What type of anesthesia is used?
We have been performing penis thickening (as well as penis enlargement) on an outpatient basis in twilight sleep for around 20 years. Our experience and expertise make this possible.
You will experience the penis thickening in a relaxed manner, will not notice it and will be fit again very quickly.
Of course, the anesthesiologist is always present.
Scientific basis for these benefits:
What technique do we use for penis thickening?
Gold standard method: Autologous fat tissue transplantation according to Dr. Siana
The penis thickening method we use was developed by UGRS founding father Dr. Jörn Siana. He had special surgical instruments produced by the industry for this purpose – proof of our innovative strength in penis enlargement.
This is how our proven penis thickening technique works:
- Harvesting: Living adipose tissue with stem cells from the thigh or abdomen
- Preparation: Nowadays it would be described as a mixture of macrofat, microfat, nanofat plus stem cells
- Transplantation: Precisely coordinated injection under the skin of the penis
- Healing: Natural fusion with surrounding tissue
Our method of penis thickening was described early on as the gold standard for penis thickening (see Krupp/Rennekampff “Plastische Chirurgie”, medical reference book).
Experience determines the result: This penis thickening technique requires a great deal of experience. This is the only way to achieve natural results without unsightly dents, lumps or loss of sensation. Thanks to continuous further development and decades of experience, we ensure maximum safety and patient satisfaction with penis thickening.
Scientifically proven advantages:
- When performed professionally and with the correct patient selection, this technique of autologous fat tissue transplantation for penis thickening as part of penis enlargement leads to very good and long-lasting results, with low risk (Citation: 16, 17, 18).
- Processed fatty tissue is now successfully used in plastic surgery in many areas of the body (Citation: 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29), which underlines the safety and professionalism of our technique.
Thanks to continuous further development of our penis thickening technique and years of experience, we are able to offer the highest level of safety, sustainability and patient satisfaction.
Medical ethics before profit: While dubious doctors often exaggerate, we rely on scientifically sound measurements for optimal results with minimal risks. We perform penis thickening in aesthetic proportion to the lengthening achieved.
Much more would be possible with penis enlargement, but it is risky: from a quantity of approx. 300 ml of transplanted fatty tissue, the risk of penis thickening surgery increases significantly (Citation: 30).
Why we reject other thickening techniques
Other penis thickening techniques often have hidden, sometimes significant risks and side effects. Hyaluronic acid on the penis can even cause fatal complications. This is why we only use our tried and tested autologous fat technique. In our experience and according to scientific findings, this has a lower risk than other fillers when carried out correctly (Citation: 20).
Find out more under “Why don’t we use other penis thickening techniques?”.
Why don't we use hyaluronic acid, silicone or artificial skin?
Concealed risks and major dangers
Since around 2014, other sometimes questionable doctors have discovered penis thickening for themselves and advertise with irresponsible, scientifically unproven promises and clear false statements. We take a stand on the other penis thickening techniques in the order we feel they are most dangerous for patients.
Scientific evaluation of other methods for penis thickening according to risk
We list methods offered as an alternative to the technique we use and evaluate them according to scientific knowledge and personal experience.
Is hyaluronic acid for penis thickening really harmless and low-risk?
Hyaluronic acid for penis thickening is advertised as a harmless, risk-free, cost-effective alternative to complex penis thickening surgery. In our opinion, this is irresponsible. Scientific findings support our opinion.
What key facts speak against hyaluronic acid for penis thickening?
The key facts here are:
- No approval: There is (as of 5/2025) no hyaluronic acid product explicitly approved for use in penis thickening. It is used by the respective doctor in so-called off-label use, i.e. the manufacturer assumes no liability, which can be of enormous consequence for the patient in the event of complications.
- Deaths documented: There are even scientifically reported cases of death after using hyaluronic acid for penis thickening (Citation: 31, 32)
Risk-free and harmless looks different!
What are the known risks of hyaluronic acid?
Depending on the area of application and the quality of the application, hyaluronic acid can lead to:
- Infections
- Biofilms caused by bacteria, especially when large quantities are used
- Necrosis (dying off) of the skin
- and in particular cause vascular occlusions
What are the consequences of off-label use of hyaluronic acid for penis thickening?
It can be assumed that a vascular occlusion in the penis leads to erectile dysfunction, possibly permanently.
This assumption was made in particular because vascular occlusions in the face caused by hyaluronic acid also affected veins as a late reaction (Citation: 39). Veins in the penis are responsible for erection control.
Is hyaluronic acid really a cost-effective alternative to penis thickening?
The statement that it is a cost-effective alternative to penis enlargement is also not true. It is in fact a dubious advertising promise.
Why the cost statement is wrong:
Hyaluronic acid is a degradable filler, which means that the respective treatment for penis thickening must be repeated at intervals. This means that the costs add up over time.
The skin of the penis is also thin and the amount of hyaluronic acid required for treatment is relatively large. There is a risk that the penis skin will stretch out over time. This means that if the replenishments are not carried out, there is a risk that the penis skin will hang down wrinkled. This makes the penis look old and misshapen.
What is problematic about brand names for hyaluronic acid on the penis?
We find it reprehensible for doctors to register brand names for the use of hyaluronic acid on the penis if they use these brand names as long as hyaluronic acid on the penis has not been approved.
The brand name “AndroFill”, for example, does not describe an approved product for penis thickening, as patients repeatedly think when they ask us about it, but merely the technique of holding the needle during injection. Due to the fact that patients repeatedly believe that it is an approved penis thickening product in its own right, we can only assume that this was the intention.
Important to know: No medical procedure is without risk. It becomes problematic when risks are concealed to promote sales or the existence of products is feigned in the eyes of patients.
So why don't we use hyaluronic acid to thicken the penis?
Our method for penis thickening with autologous fat is permanent. Fatty tissue is also the body’s own living tissue. Hyaluronic acid is a liquid that breaks down again.
Why don't we use silicone sleeves for penis thickening?
In the USA in particular, silicone plates for penis enlargement are offered under different product names, even by the same manufacturer. Similar to hyaluronic acid, these products are also often marketed as simple, low-risk and with equivalent results.
What important scientific findings are there on silicone sleeves?
Important scientific findings:
- Enlargement mainly in the flaccid state: The silicone sleeves lead to a thickening in the flaccid state (Citation: 40). In our experience, many patients are not even aware of this.
- Significant risks: The insertion of silicone sleeves can involve considerable risks and complications. These include infections and foreign body reactions (Citation: 41, 42). These risks can lead to shortening and curvature of the penis (Citation: 43).
- Risk of erosion: Since the penis is a highly flexible organ and the silicone plate is not, the skin may be penetrated by the implant (erosion). (Citation: 44)
So why don't we use silicone sleeves to thicken the penis?
Our technique leads to an enlargement in the flaccid AND erect state and does not involve the risks of foreign material.
Why don't we use artificial skin strips (pig) or autologous skin strips for penis thickening?
The study situation on this new penis thickening procedure is extremely poor. Some studies report an implausibly low complication rate and only a small increase in the circumference of the penis when erect (Citation: 45).
Contradictory study results
So why don't we use skin strips for penis thickening in Darmstadt?
We consider the risk of infection to be too high. Your own skin strips also have to be taken from a place where scars occur – in addition to the risks on the penis itself.
Why don't we use vein interposition devices for penis thickening?
Intervention in the organ:
These vein implants or vein interpositions are a far-reaching intervention in the penis itself. The cavernous body is altered in the depth of the organ. If carried out successfully without the sometimes considerable risks, the result is an enlargement exclusively in erection (Citation: 49).
For us, the risk and expense of this experimental procedure for penis thickening is disproportionate to the result.
What happens before & after penis thickening surgery?
Well prepared = relaxed through the procedure.
Good preparation and clear aftercare are crucial for an optimal surgical result in penis thickening. Our aim is for you to feel well informed, safe and accompanied at all times. That is why you will not only receive medical care from us, but also clear, understandable instructions for each phase.
Before the penis thickening operation
- Take your time to make your decision - we will advise you without pressure.
- Our special feature: patients can cancel up to the last second free of charge. We do not pressure or persuade anyone to undergo surgery.
- Plan your penis thickening as stress-free as possible: Many patients do not require a vacation, as the procedure is performed on an outpatient basis.
- Avoid alcohol and nicotine from 24 hours before the operation. You should refrain from taking blood-thinning medication (after consulting your family doctor!) for 10 days before the operation.
- Bring comfortable clothing, ideally with a wide waistband.
- Our secretarial staff will be happy to help you with your travel planning and accommodation.
After the penis thickening operation
Speed recovery: Why our patients are fit so quickly after penis thickening
Many are able to return to work after just a few days – depending on the workload. That’s what we call medical efficiency in terms of your quality of life.
Our promise: We will not leave you alone after the procedure. You will receive written aftercare instructions, a contact person for queries – and, if necessary, a short-term check-up.
Costs of penis thickening & financing
Patients sometimes ask why the operation costs around EUR 12,300 with us while it costs “only” EUR 9,000 elsewhere.
This comparison is based on the false and erroneous assumption that every doctor, regardless of who he is, regardless of whether he has learned this operation, regardless of how often he performs it, regardless of whether the information in his advertising is correct or not, and regardless of the technique he uses, offers the same service.
That’s why we want to ask the counter question, WHAT is really expensive?
– EUR 9,000 for an extension only in the slack state or
– EUR 12.300,- for an extension in flaccid AND erect state
The sad thing is that the high price of €9,000 for a flaccid-only augmentation can only be charged by doctors BECAUSE patients assume that penis enlargement equals penis enlargement.
That’s why we mention quality and the importance of specialization and experience so often. Because these doctors are ruining the reputation of surgery that we have built for 30 years with their poor and expensive sold results.
Penis enlargement price list:
-
1.
Approx. EUR 12,300 for the combination of extension and thickening (recommended)
Approx. EUR 9,500 for pure extension
Approx. EUR 7,500 for pure thickening
Financing possible, please contact us. -
2.
In case of explicit request for enlargement only in slack condition: approx. EUR 5,000.00 -
3.
CORRECTION OPERATION (i.e. if we have to correct operations that have gone wrong elsewhere):
from approx. EUR 13,500.00
from approx. EUR 14,500.00 if products not approved for use on the penis (silicone plates, silicone ball, etc.) were used.
Payment options
- Bank transfer
- EC or credit card
- Cash payment (anonymous, possible without notification)
- 0 % installment payment with a 6-month term: In cooperation with our financing providers, we offer you interest-free installment models - flexible and plannable.
Why quality has its price
Our surgical technique for penis thickening is based on over two decades of research, development and international exchange. We work exclusively with qualified personnel, high-quality materials and state-of-the-art instruments. All of this is incorporated into the costs – as well as your safety, satisfaction and a lasting result.
Our promise
- No hidden costs
- No additional fees for aftercare
- No compromises on quality and safety
If you are considering penis thickening, do it right – with a specialized team that does not compromise.
Is penis size important?
Based on our decades of evidence-based work, extensive experience and interviews with patients and their partners, we can clearly answer this question with “yes”.
What does science say about the importance of penis size?
There are very few studies and publications from the past.
Which current studies confirm the importance of penis size?
Studies confirm that penis size plays a role in women’s choice of partner (Citation: 50, 51).
A study by the California State University and the University of California, which analyzed a survey of around 52,000 men and women in partner relationships, confirms that 84% of women are generally satisfied with the size of their partner’s penis, but also reports that 14% of women would like their partner to have a larger penis (Citation: 52).
Why is 14% dissatisfied women a significant number?
14% may not sound like much at first, but in reality it is a lot, making the issue of penis size very important for women and their sexual satisfaction. Because 14% means more than 8 million women in the USA alone and more than 12 million women in Europe.
Does the preference for larger penises have an evolutionary advantage?
How has the female body influenced penis size in evolutionary terms?
The female body seems to have had a decisive evolutionary influence on penis size. The penis appears to have increased in size because the human vagina is larger than that of primates, so that the larger head of a human child, which results from the larger brain, can fit through it. In order for the human penis to continue to fill the vagina during sexual intercourse, it inevitably had to become larger (Citation: 53).
What role does the size variance of the vagina play?
Is the thickness of the penis more important than the length?
Study results suggest that penis thickness may be more important for women than penis length (Citation: 51). This could indicate that the vagina is supplied with a large number of nerve receptors that react to stretching in width.
What should society and science do?
Society and science should make further efforts to promote equal rights for women, including in sexual matters.
Since the penis is a mechanical instrument for obtaining pleasure, we believe that an emancipated woman is also entitled to express dissatisfaction with her partner’s penis.
Do women become active in penis enlargement decisions?
Who makes appointments for penis thickening surgery?
Women are becoming active: We can report from our evidence-based medical practice that more and more women are making an appointment for penis enlargement surgery for their partner.
Penis thickening surgery is not a male issue, as was long assumed, but affects both partners equally.
The article has been checked, verified and approved by the Co-author Jörg Hagen. Author: Prof. Alessandro Littara.
About the author
Alessandro Littara is an international luminary in the field of urological reconstructions. He specializes in surgical penis enlargement.
Thanks to his pioneering work in the field of phalloplasty, which began in 1990, he is considered one of the forefathers in the field of male genital plastic surgery. He teaches his modified technique for surgical penis enlargement at the International Academy of Penoplasty.
His quest for the most effective solution with maximum safety led him to develop a method that does not require any foreign materials.
The current guidelines of the European Association of Urology (EAU) from March 2026 confirm his tireless fight against the use of silicone implants or similar foreign materials in surgical penis enlargement, most of which are not approved in Europe anyway, in a table(https://uroweb.org/guidelines/sexual-and-reproductive-health on page 100) that warns against the use of foreign materials.
Activities
His medical positions are in addition to his work at the UGRS Center Darmstadt:
- Former head physician of the Department of Medical and Surgical Andrology and Sexology at the Mercurio-Quisisana Private Clinic in Montecatini Terme, where he performed his first thousand penis enlargement operations.
- Training manager at the International Academy for Penoplasty https://www.penoplastycourse.com/
- Medical Director of the Milan Center for Sexual Medicine
- Head surgeon of the surgical penis enlargement section at the UGRS Center Darmstadt
Internationally recognized expert on penis enlargement
He is interviewed by numerous daily newspapers, lifestyle magazines, radio stations and TV stations both in Europe and especially in the USA as an expert on the subject of surgical penis enlargement.
He is considered an international expert in surgical penis enlargement by the following media, among others:
USA Today, New York Post, Daily Mail, Le Parisien, Yahoo Sports, Marca, SVT, Aftonbladet, Expressen, de Telegraaf, RMC Sport/BFM TV, Nettavisen, Yle, Sapo/Portugal, la Repubblica, Corriere della Sera, La Stampa, Panorama and RAI News.
In cooperation with the Italian Ministry of Health, he has promoted digitalization in the field of urology and was one of the pioneers in providing information on medical topics via digital media.
Special recognition of his medical work
In the current guidelines of the European Association of Urology (EAU) https://uroweb.org/guidelines/sexual-and-reproductive-health, he is the only doctor named on the subject of surgical penis enlargement.
Until recently, he performed high-end operations by special invitation at the Harley Health Village in the famous Harley Street (internationally renowned for excellent plastic surgery) in London. During his time working here he performed over a thousand penis enlargements on British patients alone.
He is an accredited expert on Wikitia, the science-based offshoot of Wikipedia.
Special scientific merits
He has close scientific ties to the University Hospital in Pisa and is the author of the world’s largest scientific study to date on the subject of surgical penis enlargement, which is listed in the National Library of Medicine USA (PubMed).
His memberships in addition to the UGRS membership
- Italian Society of Andrology (S.I.A.)
- Italian Society of Sexology and Sex Education (S.I.S.E.S)
- Italian Society of Male Genital Surgery (S.I.C.G.E.M.)
- European Society of Sexual Medicine (E.S.S.M.)
- International Society for Sexual and Impotence Research (I.S.S.I.R.)
- Member of the American Academy of Cosmetic Surgery (A.A.C.S.)
- Trainer of the European Association of Genital Plastic and Cosmetic Surgery and Rejuvenation
About the medical co-author Jörg Hagen
Special merits:
The doctor Jörg Hagen has been working on the subject of surgical penis enlargement for over 30 years and has made a decisive contribution to the establishment of this operation in Germany.
With reference to the UGRS (then known as the GC of Urology), the British newspaper GUARDIAN described Germany as the world champion in penis enlargement in 2014.
He is the current organizational head of UGRS Darmstadt.
Interview with co-author Jörg Hagen (often called “Dr.Penis”) in the podcast on RTL+: https://plus.rtl.de/lets-talk-about-sex-2-0-p_30595/audio/jorg-hagen-es-gibt-keinen-perfekten-penis-c_1411114
The medical information provided on this website is for general information purposes only and does not replace a personal consultation with our doctors. As a tertiary medical center, we are also available for second opinions.
© Copyright Jörg Hagen, Doctor
About the author
Jörg Hagen, doctor
The author Jörg Hagen has been the medical director of UGRS International Germany since 1995 and has over 30 years of experience in penis enlargement and complex urological issues. He is regarded as one of the leading experts in the interests of patients in Europe. His international activities, excellent diagnostics and legal successes in patient rights make his assessments particularly well-founded. Patients appreciate his scientifically based, discreet and trustworthy care. His articles are based on many years of practice and well-founded information at the highest level.
Your request to us
Your contact: Felix Jung
Intimate Surgery Office
Mon – Fri from 9.30 am – 7 pm
Alternatively, you can conveniently book an appointment online for a telephone consultation with one of our doctors.
or fill out our contact form:
List of sources:
2 American Board of Urology. (2024 ) Residency Requirements and Training Standards. [Online PDF]. Headquarters: American Board of Urology. Retrieved from
Link: ABU Residency Requirements
6 Falagario UG, Piramide F, Pang KH, Durukan E, Tzelves L, Ricapito A, Baekelandt L, Checcucci E, Carrion DM, Bettocchi C, Esperto F. (2024) Techniques for Penile Augmentation Surgery: A Systematic Review of Surgical Outcomes, Complications, and Quality of Life. Medicina (Kaunas). 2024 May 2;60(5):758.
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24 Abu Alqam R, Alkhwildi LA, Almaghrabi MT, Alali FK, Khashab RM, Bamatraf MS, Altamimi LA, Alshammari AJ, Alsuhaim A, Fadel ZT. (2025 ) Hand Rejuvenation Using Autologous Fat Grafting: A Systematic Review of Recommended Doses, Complications, and Patient Satisfaction. Aesthetic Plast Surg. 2025 Mar;49(6):1734-1749.
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32. Shigeev SV, Morozov YE, Gornostaev DV, Uspekhova OA. (2025) Fatal’naya netromboticheskaya legochnaya emboliya pri augmentatsii polovogo chlena in “ektsiyami preparatov gialuronovoi kisloty [Fatal non-thrombotic pulmonary embolism in penis enlargement with injections of hyaluronic acid-based drugs]. Sud Med Ekspert. 2025;68(1):59-62. russian.
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40 Elist JJ, Valenzuela R, Hillelsohn J, Feng T, Hosseini A. (2018) A Single-Surgeon Retrospective and Preliminary Evaluation of the Safety and Effectiveness of the Penuma Silicone Sleeve Implant for Elective Cosmetic Correction of the Flaccid Penis. J Sex Med. 2018 Sep;15(9):1216-1223.
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52 Lever, J., Frederick, D. A., & Peplau, L. A. (2006) Does Size Matter? Men’s and Women’s Views on Penis Size Across the Lifespan. Psychology of Men & Masculinity, 7(3), 129-143
Full-text PDF (UCLA)
53 Dixson, A. F. (2009). Sexual Selection and the Origins of Human Mating Systems. Oxford University Press.
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