What department should a child with long-term recurrent oral ulcers visit?

When a child experiences recurring oral ulcers over a prolonged period, the following departments can be considered for medical consultation: 1. **Dental Department**: The dental department specializes in oral diseases and can perform clinical oral examinations and blood cell analysis to assess the condition of the ulcers. Oral ulcers are a common inflammatory response in the mouth, and initial diagnosis and treatment can typically be provided in the dental department. 2. **Gastroenterology Department**: If the oral ulcers are accompanied by ulcers on the tongue, lips, cheeks, or if the child has a history of gastrointestinal diseases, consultation with the gastroenterology department is recommended. Gastroenterologists may perform tests such as hormone level assessments and saliva analysis to help identify the underlying cause. 3. **Rheumatology and Immunology Department**: If the oral ulcers are accompanied by systemic symptoms such as fatigue and low-grade fever, which suggest abnormalities in the immune system, consultation with the rheumatology and immunology department is recommended. Doctors in this department may conduct tests such as erythrocyte sedimentation rate (ESR) and anti-streptolysin O (ASO) testing to determine the cause. If you have any concerns, please consult the relevant medical professionals.