Infants may suffer from indigestion due to an underdeveloped digestive system and incorrect feeding practices. Indigestion in infants can manifest itself through loss of appetite, bad breath, diarrhea, milk overflow, and poor sleep quality. Loss of Appetite: When a baby has indigestion, loss of appetite most often occurs. In addition, it is accompanied by discomfort such as hyperactive bowel sounds or abdominal distension, and sometimes the baby’s stomach will make a gurgling sound, which can be heard without the aid of a stethoscope. Bad Breath: The earliest symptom of bad breath is that the baby’s mouth will smell bad if the food he eats, such as milk products and dairy products, is hoarded in the stomach cavity. Therefore, parents should pay special attention to the baby’s bad breath in the morning, if you find that the baby’s bad breath is very serious, you can judge that there is indigestion. Diarrhea: the number of times a day the baby’s stool increases, can be as high as 5-10 times, and accompanied by a sour smell, there may be food is not fully digested. For younger babies, there may be lumps of milk or water in the stool, and for older babies, there may be food residue. Milk spills: Younger babies may have milk spills and older babies may vomit. If it is not severe, the vomit may have a sour odor, but the child is in good spirits. It is normal for abdominal pain to also occur, which is indicated by crying if the baby is not yet able to speak. The degree of abdominal pain varies from child to child. Poor quality of sleep: Because the baby is not feeling well, he or she will cry, stay up late, may have a fever, not sleep very soundly, sweat a lot when he or she first goes to sleep, and kick the covers a lot. If the baby has some of the above symptoms, then it is likely to be indigestion, you need to use the appropriate way to relieve, if the situation has not improved it is best to consult a doctor.