Human penis part 10 : Phases of erection and Erectile dysfunction .18+ Educational purposes only

Human penis part 10 Phases of erection ( Physiology of erection ) and erectile dysfunction which is 4.5 times higher in men of US than the men of other nations of the world.Impotence is curable condition and 70 to 80% is due to vasculogenic and diabetes. In psychogenic impotence NPT is present while it's absent in physical diseases.