There are various causes of white spots on the face, including sweat spots, vitiligo, fatty grains, acne, etc. Due to the different etiology, the symptoms exhibited also differ and there are individual differences, for example, some patients have white spots on the face without complication symptoms, and there are patients who will be accompanied by obvious swelling and pain. It is recommended that patients visit a hospital and be diagnosed by a professional doctor. The common causes include the following: 1. Acne: If a patient has white dots on the face with a slight painful sensation, it is considered to be whitehead acne. It is caused by endocrine disorder, abnormal keratinization of hair follicle sebaceous glands, infection of microorganisms, etc. Patients are advised to go to the hospital and be treated by professional doctors for conditioning. 2. Fatty pimples: Patients with white dots on the face may have fatty pimples, i.e. cornea. Use the sterilized acne needle to pick through the epidermis and remove the contents to heal; 3, sweat spot: adult patients in the summer when the face appears white spots, consider for sweat spot, usually, after the weather turns cool the white spots will gradually fade or even fade; 4, white pityriasis: 3-16 years old children as well as adolescents with white spots on the face, there is the possibility of white pityriasis. Patients with pityriasis albuginea will have round, oval or irregular-shaped patches on the face, with white bran-like scales on the skin surface; 5, vitiligo: patients are prone to white spots on the face, which are related to genetics, copper deficiency and many other factors. It is recommended that patients go to the hospital for Wood lamp examination to clarify whether it is the early stage of vitiligo; 6, anemic nevus: anemic nevus patients may have white spots on the face, which is a congenital limited hypopigmentation spot existing at the time of embryonic development.