The navel itself nerves are more sensitive to pressure, when pressed will appear pain, but the pain is generally not intense. Belly button press down obvious pain, may also be caused by certain diseases, such as acute gastroenteritis, umbilical cord infection, peritonitis, etc., should be promptly consulted to identify the cause of the disease. Acute gastroenteritis is mainly caused by gastrointestinal viral or bacterial infections, nausea, abdominal pain, diarrhea and other symptoms, at this time press the navel can cause pain, but also fever, chills and other systemic symptoms. Umbilicitis is an inflammation caused by umbilical cord infection, patients may appear in the navel and umbilical skin redness, swelling, pain and other symptoms, pressure on the navel can be painful, accompanied by pus discharge, itching and so on. When the umbilical infection spreads to the surrounding tissues, it can also cause cellulitis of the abdominal wall, peritonitis and other complications. Peritonitis is an inflammatory reaction caused by bacterial infection, physical injury and other stimuli, and its typical symptom is abdominal pain. Upon physical examination, there may be abdominal pressure, rebound pain and muscle tension, accompanied by nausea, vomiting, fever and other symptoms. Those who have severe pain when pressing on the navel should consult the doctor in time and complete the relevant examinations to make a clear diagnosis, and if necessary, carry out the corresponding treatment.