The white particles in the pores are sebaceous plugs formed by the accumulation of sebum-like substances discharged by the sebaceous glands of the hair follicles. The main component of the sebaceous plug is sebum, is due to oil, shedding of the stratum corneum and airborne dust material and other blockage of pores, resulting in sebaceous gland secretion of sebum can not be normally discharged out of the body, and thus silted up in the sebaceous gland ducts, after a period of time the formation of the white secretion of the size of a grain of rice. It is recommended not to squeeze the pores without authorization, to avoid causing enlarged pores, and even cause infection, should wash the skin in time, keep the skin clean, so as to reduce the chance of sebaceous plugs occurring. Patients with white granules in pores are advised to eat a light diet and avoid high-fat, high-sugar and spicy stimulating foods, and if they feel unwell, they should go to the hospital immediately.