Pubic lice are ectoparasites that, when infected, reside in the pubic area and bite the vulvar skin, causing symptoms such as vulvar itching and folliculitis. Examination reveals scratches and breaks in the skin of the vulva and a white dot of lice eggs attached to the pubic hair. The appearance of pubic lice is often related to unclean sexual life, poor hygiene habits. 1, unclean sexual life: pubic lice can be transmitted directly through sexual life. If a patient has multiple sexual partners or has had sexual relations with a person infected with pubic lice, it is easy to get infected with pubic lice. It is recommended that sexual life to develop good hygiene habits, you can use condoms, both men and women can wash in time before and after sex to keep the genitals clean and avoid infection; 2, poor hygiene habits: sharing clothes, towels, blankets and other personal items with patients with pubic lice can also be infected with pubic lice. Daily should do not share personal items with others, bring your own towel in public pools, bathrooms and other places to avoid infection. During pubic lice treatment, keep your vulva clean and dry, change your underwear and dry it out to disinfect it. If you have a regular sexual partner, both partners should be treated together and cleaned and treated with egg-killing drugs under the guidance of a doctor.