It is possible for bowel cancer to progress to stage II-III within a year’s time, as bowel tumors also grow faster, and it is usually possible for the tumor to occupy the bowel for a week in a year’s time. In addition, when the tumor continues to grow, it may invade the intestinal tube at a deeper depth, such as reaching the subplasma membrane, and may even invade the plasma membrane, and there may be metastasis of peri-intestinal lymph nodes. Specifically after surgical treatment, the tumor stage can usually be further determined by pathological findings. If there is no lymph node metastasis, the tumor may be in stage II. If lymph node metastasis occurs, it is usually in stage III. When the patient develops some symptoms, such as hidden pain in the abdomen, increased frequency of bowel movements, and blood in the stool, he or she needs to be examined in time.