The most common clinical cramping pain is usually manifested in the abdomen and extremities, and the common causes are mainly the following: i. Patients with intestinal obstruction can manifest as cramping pain in the intestinal canal because of the large amount of gas and fluid accumulation in the intestine. The nature of the lesion can be clarified by perfecting X-ray and CT examination of the abdomen, and oral lactulose, low-pressure enema and gastrointestinal decompression can be given to promote the discharge of the contents in the intestinal canal. For intestinal obstruction caused by tumor lesions, surgery is needed to remove the tumor and restore the patency of the intestinal canal. Secondly, patients with varicose veins in the lower extremities have a large amount of blood stagnation due to tortuous dilatation of superficial blood vessels, which manifests as painful swelling in the lower extremities. Patients can surgically remove the varicose trunk completely and ligate the branches of varicose vessels to relieve the symptoms of cramps and pains.