When I wake up in the morning, my child’s mouth smells. Why does a child this young have bad breath? Bad breath is mainly a disease caused by mucus lesions in the mouth, and the causes are multiple, such as intestinal dysfunction, dietary factors and disease factors. First of all, one year old baby bad breath is formed because of oral hygiene, disease factors, and unreasonable diet. The uncleanliness of the mouth is one of the main causes of halitosis in babies, and it is time to choose a suitable clean oral medicine for your baby to reduce the formation of bad breath. Second, the disease factor. Intestinal dysfunction and gastrointestinal diseases may also cause the formation of bad breath symptoms, this time you should take probiotics for the baby such as Mamia to regulate intestinal flora, only timely and effective regulation of the gastrointestinal function, so that the baby bad breath symptoms will not recur. Again, it may be a dietary factor. Do not give your baby cold food or allergic to cold milk powder, the consumption of such food may affect the stability of the baby’s mouth endocrine, thus making the baby appear in the mouth sour symptoms, so that the diet must be determined to eliminate such food. At the same time, after the occurrence of bad breath, you should let your child drink more water to enhance the metabolism of the mouth and endocrine, so that the phenomenon of bad breath as soon as possible to get rid of.