Intestinal diseases

Bad breath is common in patients suffering from ulcerate lesions of intestine like ulcerate colitis..Other diseases are malabsorption syndrome intestinal tuberculosis, peritonitis ect.

Diseases of lungs

Lung diseases like pneumonia, lung abscess,chronic bronchitis,bronchiectasis,tuberculosis, lung cancer ect can produce bad odor during expiration.

Liver disorders

Liver diseases like hepatitis, cirrhosis, can cause bad breath. Gall bladder diseases with vomiting also causes unpleasant odor.<>