There are white particles in the pores of the face, consider skin excretions, whiteheads acne, corn rashes and so on. 1. Skin excretions: the skin also has a metabolism, under normal circumstances, the skin will have some secretions discharged, if you usually do not pay attention to the cleanliness and hygiene of the face, secretions will be more, which will be inside the pores of the white material. 2. Whiteheads: Whiteheads are a type of acne, a chronic inflammatory skin disease, mainly caused by the skin follicles funnel part of the sebum and keratinocyte accumulation blockage caused by the main manifestation of the pinhead size of the milky white pimples, with a hand squeeze will be a white sebum bolus discharged. 3. Chestnut papules: these are retention cysts originating from the epidermis or epithelium of the appendages, and they occur in the facial area, especially around the eyelids, and are mainly manifested as yellowish-white firm papules, and if they are broken with a needle, yellowish-white granules can be found in the epidermis. The white particles in the pores of the face, should go to the hospital for a detailed examination, for the cause of the symptomatic treatment, usually pay attention to keep the skin clean and hygienic.