The lying down self-check for bowel cancer is generally used for patients who have been diagnosed with bowel cancer. These patients have often undergone a series of anti-tumor treatments and are more aware of their condition and are used for daily self-checking of bowel cancer progression. The specific method is that patients take supine position, use index finger, middle finger and ring finger to press along the colon in sequence from left to right, if abdominal mass or obvious abdominal intolerable pressure pain and rebound pain are found in the process of pressing, it is considered that intestinal tumor may recur or aggravate, and it should be further examined in the hospital in time. When bowel cancer develops to the late stage, lumps will be touched in the abdomen, and many symptoms such as weight loss, anemia, loss of appetite, etc., and accompanied by local irritation symptoms such as increased frequency of defecation, incomplete defecation, and frequent bowel movements. After anti-tumor treatment such as surgery, it is necessary to check frequently for recurrence or aggravation. Therefore, daily lying down self-examination is also a more important measure.