What Are Causes of Bad Breath from Stomach?

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4 Answers

These messages are for mutual support and information sharing only. Always consult your doctor before trying anything you read here.
My breath at times smell of dogre shit.
Choose the right method of brushing, brush at least 2 times a day, and develop the habit of gargle after eating. It is also very important to carry out tongue cleaning. Since 80% to 90% of bad breath comes from the back of the tongue, the dentist should teach the patient to use the tongue curette correctly to clean the tongue.  The commonly used mouthwashes include chlorhexidine, chlorine-containing compounds, hydrogen peroxide, sodium salts, zinc salts, etc. Good mouthwashes should achieve an ecological balance that maintains the normal flora of the oral cavity and prevents new diseases caused by dysbacteriosis. . Stimulate saliva secretion or use substitutes. Because saliva has antibacterial, bactericidal, and cleansing effects on the mouth, it is also advisable to increase the amount and flow rate of saliva, enhance the movement of the tongue, chew fiber-rich foods or chew gum. Reduce bad breath
Do you know of any good mouthwashes that maintain normal flora and prevents dysbacteriosis? Listerine and Scope don't seem to help in that department.
Mouthwashes can kill your mouth bacteria that are naturally there; this can disbalance the rest of your gut bacteria as you swallow part of the mouth flora when you eat or drink fluids. If you still want to use a mouthwash, use one without alcohol and without any carcinogens such as parabens.  
See your dental hygienist regarding your mouth flora and your health.
This does NOT answer the question about stomach bacteria causing bad breathe.  It has nothing to do with brushing when the order is coming from the stomach.  My doctor prescribed three medications -- one was an antibiotic.
Bad breath coming from the poor digestive system.

Bad breath caused by the digestive system disease can have many causes.

GERD (gastroesophageal reflux disease) symptoms are a very common digestive system disorder that can cause bad breath.

If you're experiencing gas, burping and bloating then small intestinal bacterial overgrowth (SIBO) may be causing your bad breath. Sulfur-reducing bacteria and other micro-organisms utilize sulfur compounds within foods, producing hydrogen sulfide as an end product. This can make your burps smell like rotten eggs. These bacteria include H. Pylori.


 While SIBO more commonly causes bad breath, irritable bowel syndrome can cause bad breath too. 

Malabsorption of food is a major cause of bad breath. Both Crohn's and celiac disease may limit digestion, providing more undigested food for sulfur-reducing bacteria to break down. This generates more hydrogen sulfide, causing smelly burps and sometimes bad breath.


If you've experienced diarrhea and digestive system problems alongside bad breath, it may be caused by infection. 

In addition, gall bladder dysfunction, gallstones or gall bladder removal can also lead to unpleasant burping that can cause bad breath.

I am curious to know how do you know that your bad breath is from stomach? In fact, numerous conditions would cause bad breath, in addition to stomach problems.

Causes of bad breath may include:

  • eating or drinking strong-smelling or spicy foods and drinks

  • problems with your teeth or gums, such as gum disease, holes in your teeth or an infection

  • crash dieting

  • some medical conditions, like tonsillitis or acid reflux

  • smoking
There it is yet again, blaming smoking for EVERYTHING, gesh, you people need to get a clue.
Oh come on! Smoking can't be good.
Of course smoking can cause a bad breath! That's a FACT.
Smoking negatively affects the whole body. It gets in veins, muscles, bones, cartilage, every part of the body. Tobacco doesn't discriminate.
Yes I agree. The breath of a heavy smoker smells like a dead rat. Smoking is extremely bad for an expecting women.Smoking is known to increase fibrosis, which impairs many treatments. A person I know, a strong man. wasn't willing to quit smoking no matter what the doctor said. His last days was on oxygen blood passing out of transfusions. Smoking kills.
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