There are very many reasons for white ulcers on the inner wall of the throat, such as mucosal injury, thrush, and malignant tumors of the throat. 1. Mucosal injury: foreign objects in the throat can cause localized injury and form white ulcers; secondly, eating too fast, too fast, or eating too sharp food may cause mucosal injury, resulting in white ulcers on the inner wall of the throat. 2. Thrush: Thrush belongs to oral candida infection, the tongue, throat, lips and other mucous membranes to form white patches, severe cases can cause ulcers. 3. Malignant tumor of throat: hypopharyngeal cancer, tonsil cancer and other diseases can show the phenomenon of white ulcers on the inner wall of throat, which will be accompanied by obvious pain. There are many reasons causing white ulcers on the inner wall of the throat, after the symptoms appear, patients are recommended to go to the hospital in time to improve the examination and take standardized treatment according to the doctor’s instruction, and they should not ignore the symptoms and take them lightly.