If the baby often says that the tummy is uncomfortable, it is mainly caused by the following conditions: firstly, it is caused by gastrointestinal dysfunction. As the child is relatively young, the intestinal flora is often not fully established and mature, the child’s intestinal flora will become disordered and gastrointestinal dysfunction, and the child will experience tummy discomfort. In this case, the child’s stomach pain is often short-lived, lasting about 3-5 minutes and the abdominal pain will slowly disappear. Secondly, if the tummy discomfort is due to other reasons, such as the child has enlarged mesenteric lymph nodes, the tummy discomfort is often more serious and difficult to self-relieved, and often requires the application of anti-inflammatory drugs, such as cephalosporin or Chinese medicine to clear heat and detoxify and disperse the nodes. Parents should give their children an ultrasound of the abdomen, and if they are diagnosed with enlarged lymph nodes, they can diagnose the tummy discomfort caused by enlarged mesenteric lymph nodes.