Pinhead-sized white spots in the mouth may be the result of the appearance of oral leukoplakia, or they may be the result of various diseases such as oral ulcers and thrush. Pinhead white spots in the mouth are related to many factors, clinically, the appearance of oral leukoplakia may lead to the appearance of white patches on the oral mucosa, and may also produce erosion, ulcers, bleeding and other symptoms. Some patients with pinhead-sized white spots in the oral cavity may also be related to other factors, such as oral ulcers, thrush and other diseases may lead to oral mucosal lesions, such symptoms. Usually need to observe more personal oral cavity, if found to have obvious white spots, it is recommended to actively seek medical examination and treatment, to avoid the impact on the later life.