Lice on the head can lead to head lice disease, which may be transmitted to the body, and may lead to body lice disease and pubic lice disease. Lice disease is a skin infection caused by lice parasitizing the human body and repeatedly biting and sucking blood, which can be transmitted through direct contact between people, or through indirect contact with personal items such as bedding, clothing and hats. Therefore, lice on the head may spread to the body and cause skin diseases in other parts of the body. Patients with head lice are advised to remove their hair, and women are advised to cut their hair short, then use a dense grate to grate out the lice and nits, and then use tincture of benzyl benzoate, benzyl benzoate emulsion, etc., as prescribed by the doctor, to rub all over the hair, and at the same time, personal belongings should be used separately, and the underwear, bedding, bedsheets, and pillowcases should be thoroughly sterilized. If you have lice on your head, you should seek medical attention and take treatment measures under the guidance of your doctor.