The causes of acute abdominal pain are diverse, and there are nearly 300 known causes of abdominal pain, some of which are relatively typical and easy to diagnose; however, in the early stages of many acute abdominal pains, the typical symptoms are not yet fully revealed, or they are similar to the abdominal pain manifestations of many other diseases, making it difficult to distinguish, so the diagnosis is very difficult. For example, in the early stage of ulcer disease, the presentation is very similar to that of myocardial infarction; in acute appendicitis, it is sometimes very difficult to distinguish it from gynecological diseases such as acute tubal inflammation and ovarian cyst torsion. Although there are tremendous advances in screening methods, such as ultrasonography, CT, and MRI, there are often no obvious signs of the disease even in the early stages, or the signs exhibited are not characteristic and cannot be used for diagnosis. In addition, abdominal pain is an extremely challenging problem for the surgeon due to the rapid progression of the disease and the requirement to identify the cause within a short period of time, otherwise the patient may quickly become life threatening, which is understandably stressful for the physician. For patients, abdominal pain should not be taken lightly, but should be seen in a timely manner and, if necessary, should be kept in the hospital for observation.