If there are hard stripes in the left abdominal intestinal tract by touching, mainly consider intestinal cancer, intestinal obstruction and constipation. 1. Intestinal cancer: when the patient has intestinal tumor, due to the continuous proliferation of tumor in the intestinal canal, a long hard strip appears in the intestinal canal of the left abdomen due to the proliferation of tumor, at this time, the patient is accompanied by obvious abdominal pain, blood in the stool, emaciation and other symptoms. 2. Intestinal obstruction: when the patient’s gastrointestinal peristalsis is too slow due to power and mechanical reasons, and the intestinal tract is obstructed, there will also be the situation of left intestinal tract with sclerotomies, and at this time the sclerotomies are mainly in the obstructed intestinal tract. 3. Constipation: when the patient appears constipation, the fecal excretion is not smooth, mainly the feces gathered in the sigmoid colon and rectum, located in the left side of the abdomen, at this time, the undrained feces in the form of hard bars. In addition, the left abdominal intestinal hand feel hard strip, there may be other reasons, it is recommended to go to the hospital in a timely manner, improve the relevant examination to clarify the cause of the disease, under the guidance of the doctor to give targeted treatment or treatment.