Small white particles in the hair are usually a symptom of head lice, seborrheic dermatitis or tubular hair. 1. Head lice are caused by scalp infection with lice, which is a kind of skin parasite. Lice will lay eggs in the hair after mating, so there will be a lot of white particles in the hair. It is best to shave or cut your hair short when infected with head lice. The scalp can be treated with clove basil oil or lindane cream. 2. Seborrheic dermatitis of the scalp is caused by staying up late at night, eating a spicy and heavy diet, and heredity. Patients with seborrheic dermatitis have oily scalp, and sebum accumulates to form white sebum particles adsorbed on the hair. Seborrheic dermatitis can be treated with oral medications such as Dampness Clearing Capsules and Ginseng Ling Bai Shu Granules, which clear heat and eliminate dampness (removing heat and dampness in the body) and detoxify the toxin. 3. The cause of tubular hair is unknown, people who love to tie their hair are more likely to have, and pulling the scalp. Manifested as part of the hair on the sheath-like particles of 2 to 3 centimeters, wrapped in the hair, no other symptoms. This disease usually does not need treatment, change the habit of hair tie, regular cleaning can subside by itself. It is recommended to consult a doctor when discomfort occurs, and follow the doctor’s instructions for treatment.