my problems of penis shrinkage and premature ejaculation are most likely due to excessive masturbation. Masturbation is a healthy adult sexual behavior. Like other behaviors, when over practiced or addicted it can lead to both psychological and physiological imbalances. The side effects of such changes to the body include: * Fatigue . Feeling tired all the time * Lower back pain * Soft / Weak Erection of penis * premature ejaculation i.e early release of semen fluid * Groin / Testicular pain * presdisposition to urinary infections Also it may hamper your future sexual life psychologically and physically. now whts is a solution becz iam getting married nxt month.is their any medicine which i can use