Baby stagnant food bad breath may be due to improper feeding, indigestion, etc., can be adjusted by adjusting the diet structure, increase exercise, massage the abdomen, medication and other methods of conditioning. 1. Improper feeding: such as eating too much, too fast, eating too much oily food, etc., can adjust the diet such as a small amount of multiple feedings; reduce or pause the high protein, high fat, high sugar food, add coarse grains and foods rich in dietary fiber, can increase the volume of food debris, so that the feces quickly discharged. Increase exercise: Proper exercise can help eliminate food and improve the symptoms of bad breath from food accumulation. 2. indigestion: can also cause baby food stagnation bad breath, accompanied by acid reflux, nausea, vomiting and other symptoms, at this time can be massaged around the navel to promote intestinal peristalsis, promote food metabolism, and improve food stagnation bad breath. If necessary, you can take probiotics (such as Bacillus subtilis bacillus granules) to promote digestion and improve bad breath. The above drugs should be applied under the guidance of a doctor to avoid taking them privately and causing adverse reactions. It is recommended to consult a doctor when your baby has bad breath due to accumulation of food, so that a specialist can evaluate and complete the relevant examinations and provide targeted treatment.