The dangers of over-indulgence in men include ejaculation pain, back pain, etc. It may also induce prostatitis, seminal vesiculitis, erectile dysfunction and other diseases, which will affect fertility. 1. Symptoms: If a man overindulges for a long time, it will lead to repeated and persistent congestion of the penis, which may result in ejaculation pain and accompanied by back pain. 2. Diseases: Excessive and frequent sexual intercourse can easily cause urinary tract infections and induce diseases such as prostatitis, seminal vesiculitis and erectile dysfunction. When suffering from such diseases, serious cases can affect the normal fertility, appear infertility. Once a man has an abnormal body condition, he should go to the regular hospital in a timely manner, to carry out relevant examinations, so as to clarify the cause of the disease. Men need to control the frequency of masturbation, the number of coitus, to avoid overindulgence, so as not to damage the health of the body. At the same time, you need to keep the perineum clean to avoid secondary infection. If the body allows, appropriate physical exercise to enhance physical fitness.