Small particles on the face may be caused by fat grain, eczema, whitehead acne and other reasons. 1. Cellulite: mainly manifested as localized skin with yellowish-white or white pimples, mostly occurring in the area around the eyes. 2. Eczema: often manifested in the skin on the basis of erythema, the emergence of pinhead to millet size pimples, papules, can be manifested as small particles on the face. 3. Whiteheads: Due to the increased secretion of sebaceous glands leading to the blockage of hair follicles, whiteheads can be formed, like small particles. It is recommended that people with small particles on the face go to the hospital in a timely manner to clarify the cause of the problem, and if treatment is needed, standardized treatment should be carried out under the guidance of a doctor, so as not to delay the condition to bring adverse effects on the body.