Taste in the baby’s mouth may be related to improper diet, indigestion, oral diseases and so on. 1. Improper diet: If the baby eats too much food and drinks too little water, it may lead to a taste in the mouth. Parents are advised to adjust the baby’s diet, drink more water, but also appropriate vitamin supplements, eat fresh fruits and vegetables, which is conducive to alleviate the symptoms of the baby’s mouth taste. 2. Indigestion: If the baby has indigestion, the food may accumulate in the stomach and undergo fermentation, resulting in a taste in the baby’s mouth. 3. Oral disease: such as periodontitis, inflammation due to the tissue produced by the accumulation of inflammatory substances in the oral cavity, can also cause a taste in the mouth. There may be other reasons for the taste in the baby’s mouth, it is recommended to go to the hospital in a timely manner, improve the examination to clarify the cause of the disease, under the guidance of the doctor to give targeted treatment or treatment.