Pain is a sign of disease, and by being able to visit a hospital when this sign appears, the disease will be treated sooner. Abdominal pain is a physical pain that almost everyone has felt at one time or another. Many kinds of gastrointestinal diseases can cause abdominal pain, such as dysentery and acute gastritis in acute gastrointestinal diseases, and ulcer disease, gastric cancer, pancreatitis, cholecystitis and irritable bowel syndrome in chronic gastrointestinal diseases. Abdominal pain is the most common symptom in gastrointestinal diseases and is an important sign of gastrointestinal diseases. Don’t think that abdominal pain only occurs in gastrointestinal diseases, but some diseases outside the gastrointestinal tract may also have abdominal pain, such as angina pectoris, which often occurs in the upper abdomen during an attack. Abdominal pain in the following cases is a sign of emergency ① sudden onset of unbearable abdominal pain; ② abdominal pain with fever; ③ abdominal pain with nausea and vomiting; ④ abdominal pain with pale face, cold sweat, cold hands and feet; ⑤ abdominal pain after trauma; ⑥ abdominal pain initially occurs in the middle and upper abdomen, and after a few hours, the abdominal pain shifts to the right lower abdomen; ⑦ swelling and pain in the left lower abdomen, trying to defecate but always unable to do so; ⑧ Sudden onset of severe abdominal pain with vaginal bleeding in women. Usually the menstruation is normal, and there is no menstruation for about two months before the abdominal pain. The following points should be paid special attention to when abdominal pain 1. Because of the reduced physical reaction ability of the elderly, they should pay special attention to the fact that they only show mild abdominal pain even when the condition is serious. It is necessary to seek early medical treatment to avoid life-threatening. 2, before the cause of abdominal pain is clear, it is strictly prohibited to take any painkillers, because the disease is not lifted after taking the medicine, but the patient does not feel pain, this illusion will lead to diagnostic difficulties for doctors, delay or aggravate the disease, or even miss the opportunity to treat, resulting in serious consequences. 3. After finding out the cause of abdominal pain, medication should be used to relieve pain under the guidance of a doctor.