In children, the more common problems are cryptorchidism and hypospadias, with the increase of age, the clinical scrotal edema, hernia and foreskin inflammation; after entering adolescence, the more common are circumcision, varicocele, and some psychological confusion, such as penis length, curvature, and masturbation problems; to the young people, in addition to the above mentioned diseases, there are beginning to be urinary tract infections and urinary stones, due to the influence of sexual relations, urinary tract infections and STDs will increase; in middle-aged people, there will be prostatitis, bladder cancer, and sexual dysfunction: to the old age, the prostate gland, bladder cancer, and sexual dysfunction problems will occur. Due to the influence of sexual relations, urinary tract infections and sexually transmitted diseases increase; in middle-aged people, prostatitis, bladder cancer, and sexual dysfunction occur one after another: in old age, prostate enlargement, sexual dysfunction, and prostate cancer plague people’s health.