What's wrong with long-term bad breath?

1, bad oral hygiene

usually do not pay attention

to oral hygiene

, hygiene, such as not timely gargle and brush teeth, may lead to food particles and bacteria breeding, resulting in halitosis.

2, sinusitis

Sinusitis is caused by bacterial invasion of sinus mucosa, can secrete more inflammatory substances, resulting in odor, plus the same nose and throat, can be discharged through the mouth.

3, oral diseases such

as mouth ulcers, gingivitis, periodontitis, etc., can lead to bacteria breeding, fermentation will produce a lot of odor, resulting in halitosis.