key words Impotence.,loose penis Masturbation causes venous impotence and is treatable Dr Vishwa Prakash Plastic surgeon(Independent practice ) vpagarwal@gmail.com 9810115227 Masturbation Is supposed to cause sexual stimulation and pleasure without involving opposite sex.In Modern medicine it is supposed to be total harmless procedure.But I have proved it to be harmful and cause erectile problems. In masturbation in males the penis is stimulated and cause to be erect by stimulation for longer time resulting in lot of strain on valve like mechanism at tunica level which helps in preventing the penile blood to go into venous channels from arterial channel in turn causng erection.Valvular mechanism is normal mechanism required for erection to take place. When erection is maintained for longer time by stimulation the mechanism of tunica gives way and erectile impotence takes place. We have examined 50 patients coming for erectile failure .All reported to have ...