The cause of fatty grains is a tiny wound on the skin, and in the process of skin repair itself, generated a small white cyst, or may be due to sebum is covered by keratin, can not be normal discharge to the epidermis, and thus accumulate with the formation of white particles in the skin. Fat particles patients usually diet should avoid spicy and stimulating, too greasy food, pay attention to the face and eye cleanliness, do not watch for a long time on the computer phone, do not use cosmetics containing heavy metals, to avoid pigmentation, toxins residual epidermis.