What is a bad smell in your mouth?

Patients with oral odor can see stomatology, oral mucosa, oral special clinic can, first to these departments to check the first treatment, it is possible to solve the patient's problem. Because it is likely to be due to gum inflammation, periodontitis, tooth decay and so on. The patient's oral hygiene is poor, there are a lot of dental calculus, a lot of soft dirt, a lot of plaque microorganisms, thus causing oral odor. Ultrasonic cleaning, mouthwash, etc. can alleviate symptoms. Of course, it may also be caused by stomach lesions, so go to the Department of Gastroenterology. It may be caused by lung lesions, so go to the Department of Respiratory Medicine.