The baby’s tummy is uncomfortable with crying and restlessness, loss of appetite, nausea and vomiting, diarrhea and bloating, defecation difficulties and other manifestations. 1. Crying and restlessness: the baby’s stomach is uncomfortable, will not be able to express in words, there will be crying and restlessness of the performance, the more severe the tummy ache the more serious the crying, the symptoms are not relieved before the crying will generally continue. 2. Decreased appetite: the baby’s tummy is not comfortable may have a decreased appetite, the baby’s amount of milk to reduce or refuse to drink milk. 3. Nausea and vomiting: the baby’s stomach upset is more serious, there may be obvious symptoms of nausea and vomiting, drink in the milk will be spit out. 4. Diarrhea and bloating: the baby’s upset stomach may lead to the baby’s bloating manifestations, active bowel sounds, some of the children accompanied by the phenomenon of frequent diarrhea. 5. Difficulty in defecation: An upset baby tummy may also lead to constipation and difficulty in defecation. When the child has the above symptoms, there may be symptoms of an upset stomach, it is recommended to consult a doctor for a clear diagnosis, to avoid missing the opportunity for treatment.