The graying of the pubic hair is related to the hormone level in the body, nutritional status and external chemical stimulation of sleep and mental factors. As the body’s tyrosinase activity decreases with age, the pubic hair becomes white due to the loss of pubic hair pigmentation, which is a natural phenomenon just like the graying of hair. However, if the local pubic hair becomes white and accompanied by local skin redness or white, itchy or painful symptoms, consider the possibility of vulvar malnutrition or other skin diseases, it is advisable to go to the hospital to check or do skin ultrasound to determine the lesion, according to the situation of symptomatic treatment. It is recommended to pay attention to perineal hygiene, clean the perineum with warm water every night, and do not use gynecological lotions too frequently.