The most common cause of abdominal cramps is caused by acute gastroenteritis. Intramuscular injection of drugs to relieve spasm can be given, commonly used are atropine injection, but the side effect is that it will inhibit glandular secretion, and the patient shows obvious dry mouth, so appropriate fluid supplementation should be given. In addition, scopolamine hydrobromide can be injected intramuscularly, which also has the effect of relieving smooth muscle spasm. Some patients are also caused by organic lesions of the intestine, such as most commonly malignant tumors, which may lead to intestinal obstruction with the development of the tumor, and the retroperistalsis of the intestinal canal will result in significant colic, accompanied by nausea and vomiting. In this case, the pure application of medication cannot completely relieve the condition. Systematic colonoscopy is needed to make a clear diagnosis and then surgical treatment is required to remove the primary lesion. After the surgery, the patient should be removed from bed early to prevent intestinal adhesions, intestinal obstruction and other common complications.