Hi doctor when i farted have stinky odor from my mouth what is causes???

Indigestion.: If you have an indestion, & a gastric reflux, partly digested food can come up the esophagus & can give you a bad odor in the mouth. Eating foods like onions, Garlic also give a an odor in the mouth. Check with your physician for proper check up for a corrective treatment.If you did not visit your dentist in a long time, you may need a check up & recommended treatment.

A simple solution: In the majority of cases, the cause of bad breath, or halitosis, is the product of bacteria in the mouth. The proper diagnosis is the key to a successful treatment. See your dentist for Halimeter test, diagnosis and bad breath treatment that depends on its cause. Good luck.