A penis extender is an external medical device with tentative evidence as of 2019 for Peyronie's disease. It acts as a mechanical, traction device that stretches the human penis in the flaccid state to make it longer.
Penis extenders usually have a plastic ring that sits at the base of a flaccid penis, and another ring before the glans penis, with a traction device that runs along the sides of the organ. The wearer adjusts springs, which pull the penile shaft with the intention of stretching the flaccid penis to become longer.
There is tentative evidence for use in Peyronie's disease. As of 2019, studies have been small in size; many had difficulty carrying out the treatment during the study period, and people were not blinded to the treatment that they were receiving.
Adverse effects are not extensively reported in the literature, and they are usually mild and self-limiting, in part caused by lack of patient compliance with penile traction therapy (PTT). The most commonly reported symptoms with PTT include pain, erythema, ecchymoses, and pruritus. Another reported symptom was edema to the pubic bone, which is associated with vigorous usage. All of these adverse events are generally self-limited and resolve with discontinuation of PTT.
It should not be used if penile wounds, lacerations, or infected zones have not fully healed, and by those suffering certain diseases or disorders. Aggressive or incorrect uses of penis extenders can cause damage to skin and blood vessels, among other possible issues.
- Body dysmorphic disorder
- Erectile dysfunction
- Human penis size
- Penis enlargement
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5th Congress of the European Society for Sexual and Impotence Research (1–4 December 2002). Hamburg, Germany.
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- Gontero P, Di Marco M, Giubilei G, Bartoletti R, Pappagallo G, Tizzani A, Mondaini N (March 2009). "A pilot phase-II prospective study to test the 'efficacy' and tolerability of a penile-extender device in the treatment of 'short penis'". BJU International. Wiley-Blackwell. 103 (6): 793–797. doi:10.1111/j.1464-410X.2008.08083.x. PMID 18990153.
- Gontero P, Di Marco M, Giubilei G, Bartoletti R, Pappagallo G, Tizzani A, Mondaini N (February 2009). "Use of penile extender device in the treatment of penile curvature as a result of Peyronie's disease. Results of a phase II prospective study". The Journal of Sexual Medicine. International Society for Sexual Medicine. 6 (2): 558–566. doi:10.1111/j.1743-6109.2008.01108.x. PMID 19138361.
- Grütz M (2 April 2019). "Penisverkrümmung. Mit Stangen-Expandersystem gegen Peyronie" [Penile Curvature. With Bar Expander System Against Peyronie]. Uro-News (in German). Springer Medizin (4/2019). ISSN 1432-9026. Retrieved 20 July 2022.
- Lee Z, Liu YD, Wang YX, Ye WJ, Zhu XB (2005). "Effects on Penile Size with Penile Extensor by Traction Force in 3 Months (Report of 30 Cases)" (PDF). Renjii Hospital Report. Shanghai, China: Shanghai Institute of Andrology, Renji Hospital Affiliated to Medical College, Shanghai Jiaotong University. pp. 1–2. Retrieved 24 July 2022.
The device should not be used until any penile wounds, lacerations or infected zones have completely healed. And it should not be used by patients with penile tumor, chronic disorders affecting blood circulation, oxygenation and regeneration of tissues (advanced or uncontrolled diabetes, liver cirrhosis, advanced respiratory failure). The subjects suffered from priapism, uncontrolled psychology disorders, diabetes, heart diseases and hand disorders not to use the device. ... In every visits, the penile discomfort, pain, foreskin edema should be paid attention to.
- Marra G, Drury A, Tran L, Veale D, Muir GH (January 2020). "Systematic Review of Surgical and Nonsurgical Interventions in Normal Men Complaining of Small Penis Size". Sexual Medicine Reviews. Elsevier. 8 (1): 158–180. doi:10.1016/j.sxmr.2019.01.004. PMID 31027932.
Treatment of small penis in normal men is supported by scant, low-quality evidence. Structured counseling should be always performed, with extenders eventually used by those still seeking enhancement. Injectables and surgery should remain a last option, considered unethical outside of clinical trials.
- Moncada I, Krishnappa P, Romero J, Torremade J, Fraile A, Martinez-Salamanca JI, et al. (April 2019). "Penile traction therapy with the new device 'Penimaster PRO' is effective and safe in the stable phase of Peyronie's disease: a controlled multicentre study". BJU International. Wiley-Blackwell. 123 (4): 694–702. doi:10.1111/bju.14602. PMID 30365247.
- Moskovic DJ, Pastuszak AW, Lipshultz LI, Khera M (February 2011). "Revision of penile prosthesis surgery after use of penile traction therapy to increase erect penile length: case report and review of the literature". The Journal of Sexual Medicine. International Society for Sexual Medicine. 8 (2): 607–611. doi:10.1111/j.1743-6109.2010.02121.x. PMID 21091884.
- Nikoobakht M, Shahnazari A, Rezaeidanesh M, Mehrsai A, Pourmand G (November 2011). "Effect of penile-extender device in increasing penile size in men with shortened penis: preliminary results". The Journal of Sexual Medicine. International Society for Sexual Medicine. 8 (11): 3188–3192. doi:10.1111/j.1743-6109.2009.01662.x. PMID 20102448.
- Nowroozi MR, Amini E, Ayati M, Jamshidian H, Radkhah K, Amini S (May 2015). "Applying extender devices in patients with penile dysmorphophobia: assessment of tolerability, efficacy, and impact on erectile function". The Journal of Sexual Medicine. International Society for Sexual Medicine. 12 (5): 1242–1247. doi:10.1111/jsm.12870. PMID 25809129.
- Oderda M, Gontero P (April 2011). "Non-invasive methods of penile lengthening: fact or fiction?". BJU International. Wiley-Blackwell. 107 (8): 1278–1282. doi:10.1111/j.1464-410X.2010.09647.x. PMID 20868389.
- Romero-Otero J, Manfredi C, Ralph D, Osmonov D, Verze P, Castiglione F, et al. (March 2021). "Non-invasive and surgical penile enhancement interventions for aesthetic or therapeutic purposes: a systematic review". BJU International. Wiley-Blackwell. 127 (3): 269–291. doi:10.1111/bju.15145. PMID 32575166.
- Shaw EJ, Mitchell GC, Tan RB, Sangkum P, Hellstrom WJ (December 2013). "The non-surgical treatment of peyronie disease: 2013 update". The World Journal of Men's Health. Korean Society for Sexual Medicine and Andrology. 31 (3): 183–192. doi:10.5534/wjmh.2013.31.3.183. PMC 3888887. PMID 24459651.
- Sohn M, Hanikel W (March 2006). "Prospective study on the effects of a penile stretching system (Phallosan) for penile augmentation in patients with normal sized penises". The Journal of Sexual Medicine. International Society for Sexual Medicine. 3 (3): 173–175. doi:10.1111/j.1743-6109.2006.00188_1.x. PMID 16497240.
Book of abstracts of the 8th Congress of the European Society for Sexual Medicine, Copenhagen, Denmark, 4–7 December 2005.
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- Ziegelmann M, Savage J, Toussi A, Alom M, Yang D, Kohler T, Trost L (September 2019). "Outcomes of a Novel Penile Traction Device in Men with Peyronie's Disease: A Randomized, Single-Blind, Controlled Trial". The Journal of Urology. Elseveier. 202 (3): 599–610. doi:10.1097/JU.0000000000000245. PMID 30916626.
- Bryner J (21 April 2011). "One Male Extender Found to Actually Work". Live Science. Future plc. Retrieved 20 July 2022.
One noninvasive technique to lengthen penises— penile traction devices — shows promise, according to a new review of research. But researchers say most men who seek longer penises don't really know the long and short of their situation.
- Hsieh C, Thomas SS (8 July 2019). "11 Things You Need to Know About Penis Extenders". Cosmopolitan. Hearst Communications. Retrieved 20 July 2022.
Judson Brandeis, MD, says that on the other hand, a penis extender is a mechanical traction device that stretches the penis in the flaccid state, meant to stretch the penis to make it longer.
- Leonard J (30 September 2019). "Does Penis Stretching Work". Medical News Today. Red Ventures. Retrieved 20 July 2022.
Penile traction devices, or penis extenders, stretch the tissues in the penis to increase its length. Some research indicates that these devices work. However, they require persistence and dedication to produce noticeable results. ... Individuals interested in trying a penile extender should note that most of these studies involved only small sample sizes. Other criticisms include selection bias, which means that the randomization of the study participants may not be sufficient, and researchers may select them to achieve a particular result. More research is necessary to determine more accurately the safety and effectiveness of these devices.
- "Myth Busting Male Enhancement: Does It Work?". Healthline. Red Ventures. 1 December 2016. Retrieved 20 July 2022.
A penile extender is a noninvasive device. It uses traction to stretch your penis. A study reported in the Journal of Sexual Medicine found that the average length of participants' flaccid penises increased by more than 1.5 centimeters after three months of using a penile extender. More research is needed to learn how safe and effective penile extenders are. They can be cumbersome and uncomfortable to use. Too much stretching may also cause bruising, nerve damage, or blood clots to form in the veins of your penis.
- Paddock C (20 April 2011). "Want A Longer Penis? Traction Beats Surgery, Say Researchers". Medical News Today. Red Ventures. Retrieved 20 July 2022.
Penile extenders usually require the penis being in traction for several hours a day for several months, and the researchers wondered whether the gains were worth it. A small number of the men who used penile extenders reported experiencing bruising, temporary discoloration, pain and itching.
- "Penile Extender Increased Flaccid Length By Almost A Third, Clinical Study Reports". ScienceDaily. 10 March 2009. Retrieved 20 July 2022.
The authors believe that the results are significant. 'Our study showed that the penile extender device produces an effective and durable lengthening of the penis, both in the flaccid and stretched state,' concludes Dr Gontero. 'If these results are confirmed by further research, we propose that the device should be used as a first-line treatment option for men seeking a penile lengthening procedure.'
- Tilke C (15 April 2005). "Phallosan Study Statistical Report" (PDF). pp. 1–36. Retrieved 20 July 2022 – via Phallosan.com.
Phallosan is an orthopaedic stretch belt for penis enlargement which was launched on the market in 1999. Between July 2005 and January 2005 a study of the effectiveness of Phallosan was carried out under the patronage of Professor Dr. Sohn, Chief Physician at the Urological Clinic at the Markus Hospital in Frankfurt am Main. The data was collected by the clinic’s Senior Consultant, Dr. Hanikel. The results of 24 patients from the study were used for evaluation purposes. Two patients were classified as dropouts, but these had no post-baseline measurements and have been excluded from the analyses. They were only included in the analysis of satisfaction levels in the form of a worst-case analysis and classed as dissatisfied. A further 5 patients were marked ‘to follow’ in the study data and have been excluded (for the time being) from the analysis. The main purpose of this statistical report is to determine whether a (statistically) significant change in penis girth and length can be identified after using Phallosan for six months. For this purpose, univariate characteristics were calculated for these parameters and t-tests conducted of the significance of the enlargement. An allowance was made for the fact that due to repeated application of the test it was a multiple test problem.
- Wanjek C (11 March 2009). "Penile Extenders Actually Might Work, Doctors Say". Live Science. Future plc. Retrieved 20 July 2022.
'The magnitude of gained length was similar irrespective of baseline size,' Gontero told LiveScience. 'So the device could work also for those men who complain of so-called penile dysmorphopobia [and who] fall within the normal range — the majority — but who are strongly convinced they have a small penis.' The extender, however, didn't fully live up to the claims of its manufacturer, Andromedical, based in Madrid, which boasts of an average gain of 1.3 inches for an erection and a larger girth. Gontero's group saw no significant improvement in girth and no biological mechanism that would support the claim. Perhaps not surprisingly, the study didn't ask whether the men's partners were happy with the change.