The pain around the navel of five-year-old children may be caused by intestinal spasm, mesenteric lymphadenitis, acute gastroenteritis, allergic purpura, roundworm disease, etc. It is recommended that parents promptly take their children to the hospital to clarify the cause and carry out targeted treatment. 1, intestinal spasm: the cause is not clear, may be due to dietary factors or environmental stimuli, five-year-old children usually have symptoms of pain around the navel, the pain is mostly Sudden or paroxysmal. More severe pain may be accompanied by vomiting, pallor, cold sweats, and chills in the hands and feet. Parents can treat children with intestinal spasms with belladonna tablets and scopolamine tablets under the guidance of a doctor; 2. Mesenteric lymphadenitis: mainly caused by coxsackie B virus infection, some patients are also associated with pathogenic infections such as bacteria, parasites and mycoplasma. Five-year-old children may present with pain around the navel or even full abdominal pain at the beginning of the illness. In addition, symptoms such as fever and vomiting may occur, and in severe cases, symptoms of nutritional deficiency may also occur. Children can be treated with antiviral drugs, such as ribavirin pellets, under the guidance of a doctor; 3. Acute gastroenteritis: This is usually caused by five-year-old children eating unclean food, pathogenic bacterial infections and other conditions. Children usually have symptoms such as abdominal distension, nausea, vomiting, diarrhea, etc. In severe cases, fever may appear and some children may have pain around the navel. Parents can use antidiarrheal drugs such as montelukast and enteritis tablets to relieve symptoms under the guidance of a doctor, and also use norfloxacin capsules for anti-inflammatory treatment; 4. Allergic purpura: the cause is still unclear and may be related to genetics, pathogenic bacterial infection, exposure to allergic substances and other factors. Five-year-old children usually have symptoms such as skin purpura, joint pain and restricted activity, and some children may have pain around the navel. Parents can use methylprednisolone tablets, compound cyclophosphamide tablets, compound acetaminophen tablets and other medications under the guidance of a doctor. 5. Ascariasis: It is usually caused by five-year-old children after consuming food with ascaris eggs. When roundworms are parasitized in the intestine, children usually experience pain around the navel, and in severe cases, intestinal obstruction and intestinal perforation may occur. Parents can use prothiobenzimidazole tablets, mebendazole tablets, etc. under the guidance of a doctor. Five-year-old children with pain around the navel must go to the hospital in a timely manner. During the treatment period, children can be given some easy-to-digest liquid food, such as rotten noodles, millet porridge, pumpkin porridge, etc.