Boys can have pain when pressing the belly button may be due to intestinal perforation, intestinal obstruction, inflammation of the organs and other factors, resulting in peritonitis and other diseases. Intestinal perforation when the intestinal content into the abdominal cavity, irritation of the peritoneum, can lead to abdominal pain. In intestinal obstruction, the obstructed segment of the intestinal tube stimulates the peritoneum with inflammatory factors at the lesion due to the obstruction, leading to pain. Inflammation of organs, such as appendicitis, pancreatitis, cholecystitis and other diseases, inflammatory factor exudation, stimulation of the peritoneum, resulting in severe pain in the peritoneum. Various inflammatory factors stimulate the peritoneum, leading to inflammation of the peritoneum at the navel, which is manifested by the occurrence of peritonitis there. Pressure produces severe pain and rebound pain. This pain is often more intense than the pain at the site of the primary inflammation and can lead to pain in male patients. In addition to the above, boys press the navel will pain is also considered with the umbilicus other lesions and other factors, it is recommended that the patient under the guidance of the doctor in a timely manner to find out the cause of the disease, and reasonable systematic treatment.