If small particles are always picked out of the scalp, it is usually related to sebaceous gland hyperplasia and folliculitis. Pay attention to avoid hand picking and grasping, strengthen the head cleaning, with the use of drugs, usually can be improved. Common causes and treatments: 1, sebaceous gland hyperplasia: If the body androgen level is high, resulting in the epithelial cells of the scalp sebaceous gland ducts proliferation, blocking the scalp pores, which in turn leads to small particles on the scalp, can be picked out by hand. Usually no treatment is needed, pay attention to the cleanliness of the head can be, serious cases can use isotretinoin cream or laser treatment; 2, folliculitis: commonly caused by Staphylococcus aureus infection hair follicles, manifested as inflammatory papules of the scalp, accompanied by swelling and pain and redness. It can be treated with topical antibiotic creams, such as mupirocin, or oral vitamin B complex. Note: Patients should pay attention to daily care, avoid eating spicy, greasy and stimulating food, and eat more fresh vegetables and fruits. Also avoid picking at the head to avoid triggering or aggravating the infection.