What causes belly button pain in children?

For children with navel pain, whether there is redness, swelling, skin breakdown or discharge from the navel, if so consider umbilicitis and if there is polyp-like tissue or a lump also consider lesions such as umbilical velvet. In addition to the umbilicus and the abdominal wall around the umbilicus, intra-abdominal organ pathologies such as appendicitis, Crohn’s disease, irritable bowel syndrome and ascariasis may also cause symptoms of belly button pain and need to be seen for a definitive diagnosis.