What causes bad odor in mouth?
Patient: I have a bad odor in my mouth. I have been to a dentist nothing is wrong with my teeth  are gums. I am not diabetic. I use all kinds Of expensive mouth wash. Nothing is working! The upper part of my stomach hurts when I cough. I can not get rid of this bad breath . What could be causing this? Doctor: Hello,  Thanks for consulting HCM,   Read your query, as you have bad breath this can be due to deposition of food debris , plaque , calculus in subgingival area of gums ,  dental caries , yeast infection in mouth , dry mouth , decreased salivation,   habit of chewing tobacco , drug induced or upper respiratory infection like pneumonia , bronchitis , liver or kidney related disorder . For this you should consult dentist and go for oral prophylaxis , Regular use of mouthwash , warm saline rinses , use of waxed dental floss to clen interdendal areas of teeth , if your bad breath continues then consult physician and go for examination and treatment. Hope it will help you. Wishing you good health.Regards , Dr. Priyanka tiwari