Small tummy hardness, in general, the common causes are mainly the following: a. Patients with long-term constipation, due to the large amount of feces stagnation in the abdomen, with the absorption of fecal water, will lead to dry feces small tummy hardness. At this time, the patient can be given oral lactulose, Benadryl tea, pantethine glucosamine and other laxative drugs, if necessary, combined with low-pressure enema, to promote the intestinal canal fecal discharge, can reduce the symptoms of a hard belly. Second, patients with malignant tumors in the abdominal cavity, such as small intestinal mesenchymal tumors, can cause the intestinal tube to compress the abdomen to expand outward, and the performance of a hard belly can be felt during physical examination. Patients can improve the CT and ultrasound examination of abdomen to clarify the source and nature of the tumor, and perform surgery to remove the tumor in the abdominal cavity as soon as possible. After the surgery, local radiotherapy and systemic chemotherapy can be combined to prevent the recurrence of tumor, thus reducing the symptoms of hard tummy.