Which subject should I see if I have bad breath?

? Many people don't quite understand. Experts pointed out that bad breath may be related to gastroenterology, otolaryngology, stomatology, respiratory medicine and other departments, and it needs symptomatic treatment. Simple halitosis is mostly caused by unclean mouth or bad living habits. If you can't brush your teeth and rinse your mouth normally, you will get bad breath if you have too many calculus, don't pay attention to the cleaning of dentures and like to eat snacks. After middle age, saliva secretion decreases, which reduces the self-cleaning effect of the mouth, so middle-aged and elderly people are more likely to have bad breath. In addition, smokers will smell smoke in their mouths and noses. There are many reasons for secondary halitosis, mainly related to diseases in gastroenterology, otolaryngology, nephrology, stomatology and respiratory medicine. Wang Runhua, chief physician of internal medicine of Beijing Friendship Hospital, believes that digestive tract diseases are the main causes of halitosis: digestive tract stenosis diseases, inflammatory diseases, digestive tract tumors and constipation can all cause halitosis. Otolaryngology Diseases Professor Zhang Daoxing, director of the Department of Otolaryngology in this hospital, believes that bad breath caused by foreign bodies in the nasal cavity mostly occurs in children. Common foreign bodies in the nasal cavity, such as small toys, peanuts, beans, etc., mistakenly enter the nostrils, causing decay and infection, resulting in odor in the oral cavity or nasal cavity. Some old-age nose and mouth odors are mostly caused by atrophic inflammation. Kidney disease When the renal function is damaged, the accumulation of toxins and the apple-like sour smell are dangerous signals, which should arouse enough vigilance. Zhang Wenkui, deputy chief physician of stomatology, believes that common oral diseases can cause bad breath, such as unclean gingivitis and periodontitis. Respiratory diseases He Zhengyi, director of the Department of Respiratory Medicine of the hospital, stressed that patients with lung abscess often have sour smell and foul smell. In addition, hemoptysis caused by tuberculosis and bronchiectasis often leads to bloody breathing and bad breath, and patients with advanced lung cancer often have foul breath. Experts agree that the prevention of halitosis should first find out the causes of halitosis, and then treat it in the corresponding outpatient department according to the causes. (Source: 2 1CN)

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