If the child has recurrent or frequent periumbilical pain, the main reasons are related to the following: 1, abdominal cold leads to smooth muscle spasm, plant nerve disorder, and periumbilical abdominal pain. 2, unclean diet or indigestion. Do not pay attention to eat too much cold, spicy and stimulating food, or overeating, etc. may appear peribulbar abdominal pain. 3, acute gastroenteritis with diarrhea and other conditions, will cause pain and discomfort; 4, the child is small, usually not good enough hygiene, after playing did not wash hands in time, with dirt to eat, resulting in the body of parasites such as roundworms, will also produce pain symptoms; 5, suffering from mesenteric lymphadenitis, intestinal obstruction, etc. mainly manifested as pain around the umbilicus; 6, acute appendicitis will also cause pain. 7.Lead poisoning: If you don’t wash your hands in time after studying, and lead powder comes into contact with the skin or is absorbed by the mouth, lead poisoning will occur after long exposure, and abdominal pain and neurological symptoms will appear. If your child has pain around the belly button, you can go to the hospital to check whether the blood lead level is high, and then check whether there is intestinal parasitic infection, and then give the right treatment according to the routine blood test, ultrasound examination and determination of the infection pathogen.