M: (1) Keep underwear clean and hygienic. Try not to pollute your underwear when urinating. Once it is dirty, it should be replaced and cleaned in time. Underwear should not only be frequently changed and washed, but also exposed to the sun. (2) Wash the penis head in the morning and evening. If the foreskin is too long, don't forget to clean the inner layer of the foreskin and the leather crown, because this is a place where it is easy to hide evil people and shelter evil people. (3) Be sure to wash after sex, and it is best to wash the excrement in sexual contact with green tea water or clear water. If men insist on paying attention to the hygiene of sexual organs and develop the habit of washing with warm water, it will not only be beneficial to the hygiene of sexual life, but also promote local blood circulation and prevent anal fissure and hemorrhoids, which is beneficial and harmless. Female: (1) Get into the habit of cleaning the vulva every day, paying special attention to cleaning the folds and gaps around the clitoris and the outer labia. (2) As long as conditions permit, try to avoid discrimination, defecation or soiling underwear after defecation, and it is best to wash genitals with warm water. (3) After sexual intercourse, it is best to urinate once so that semen can be discharged from the vagina. In addition, the genitals should be cleaned with hot water in time. Only by cleaning the genitals regularly can the dirt in the genitals and humus particles around the genitals be removed in time. Otherwise it will accumulate in the genitals or nearby parts. Because the female urethral orifice is close to the genitals and anus, it is very easy to be infected, so it is more important to clean it frequently.