What department should I visit for long-term mouth ulcers?

Patients with long-term oral ulcers can consider the following departments when registering for medical consultation: 1. Department of Stomatology/Dentistry: Oral ulcers are one of the common conditions treated in the Department of Stomatology. Doctors in this department can provide professional diagnosis and treatment for lesions of the oral mucosa. 2. Department of Oral Mucosal Diseases: In large, specialized oral hospitals where the departments are more specifically divided, the Department of Oral Mucosal Diseases may be a more specialized option, as doctors here have more experience and expertise in this particular field. 3. Relevant Internal Medicine Departments: If the oral ulcers are associated with internal medical conditions (such as gastrointestinal dysfunction or endocrine disorders), patients may need to visit departments such as Gastroenterology or Endocrinology. If oral ulcers are related to internal medical diseases, patients should follow the recommendations of the stomatologist and visit the appropriate internal medicine department for further evaluation and treatment. During the consultation, patients should describe their symptoms in detail and cooperate with the doctor in conducting relevant examinations in order to identify the underlying cause and receive effective treatment.