What department should I visit for dry mouth, bitter taste, and bad breath?

Dry mouth, bitter taste, and bad breath may involve multiple departments. The specific department for consultation should be selected according to the symptoms and possible causes. 1. Traditional Chinese Medicine (TCM) Department: If accompanied by symptoms such as dark yellow and scanty urine, dry stool, red tongue with yellow coating, TCM syndromes such as damp-heat in the liver and gallbladder or excessive stomach fire may be considered. In such cases, consultation at the TCM department is recommended. 2. Dentistry Department: If accompanied by swollen and painful gums, sensitivity to hot, cold, sour, or sweet stimuli, loose teeth, or other symptoms, oral diseases such as dental caries or periodontitis might be the cause. Therefore, consultation at the dentistry department is advised. 3. Gastroenterology Department: If symptoms include irregular eating habits, excessive alcohol consumption, or long-term consumption of spicy and irritating foods, along with belching, hiccups, acid regurgitation, or similar symptoms, conditions such as bile reflux gastritis or cholecystitis may be present. In such cases, consultation at the gastroenterology department is recommended. Dry mouth, bitter taste, and bad breath can be caused by various factors. It is recommended to choose the appropriate department based on specific symptoms and potential causes to receive accurate diagnosis and treatment.