Wendy Hurn, a urology specialist at Bristol Royal Infirmary in the UK, conducted research into treating penile retraction caused by Peyronie’s disease, using the same penis traction method the Jes Extender penis enlarger uses. The study proved that penis traction is a perfect alternative to surgery and is highly effective in not only increasing the size of the penis, but straightening it for men who may be affected by penile curvature and retraction.
The study was based on 22 men between 18-78 years old with Peyronie’s disease. The subjects were divided into two groups; one group of men with 12.5cm or less (stretched penis) and one group of men with over 12.5cm (stretched penis). All subjects wore a medically tested penis enlarger for an average of 5 hours daily for 3 months. At the end of the treatment, Hurn recorded an average 0.8-2.3cm increase in penis length and 20% reduction of penile curvatures.