The perineum, in a narrow and broad sense. The perineum in the narrow sense is the soft tissue between the anus and the external genitalia. In the broader sense, the perineum is all the soft tissue below the pelvic diaphragm that encloses the lower pelvic opening. In men, the perineum in the narrow sense is the soft tissue area between the root of the scrotum and the anus, and in the broader sense is all the soft tissue below the pelvic diaphragm that encloses the lower pelvic opening. It is important to keep this area hygienic, to wash it in a timely manner, and to keep the skin dry and clean. The location of the perineum in a narrow sense in women is the soft tissue between the vagina and the anus, which is about 3-4 centimeters in width, and in a broader sense it refers to all the soft tissue that closes off the lower pelvic opening, in a diamond-shaped area. The thickness of the tissue in the female perineum is usually around to four centimeters. It gradually narrows from the outside inward in the shape of a wedge, the surface of the skin and subcutaneous fat, usually also pay attention to maintain perineal hygiene.