Bowel cancer, I believe many friends are not unfamiliar with it, as long as the onset of bowel cancer is caused by diet, life pattern and genetics, the age of onset tends to be older, and the ratio of men to women is 1.65:1. Today, we will introduce to you in detail what are the symptoms of bowel cancer, and hope to help friends in need. Main symptoms 1. At the early stage of bowel cancer, blood is the main symptom, followed by change in stool habit, incomplete bowel movement, and heavy weight, etc. In addition, it is very likely to cause obstruction and intestinal irritation symptoms. There are many prominent clinical manifestations of bowel cancer, so patients need to be more careful. In the early stage of bowel cancer, blood in stool is mainly painless, and the blood is red or bright red, which is very similar to the symptoms of early internal hemorrhoids; in the later stage, blood in stool is mostly dark red, mixed with mucus and blood of stool or pus and blood. Secondly, change of stool habit is a typical manifestation of middle and late stage of intestinal cancer. Due to rectal mass and its secretion, it can produce symptoms of intestinal irritation, resulting in frequent bowel movement, incomplete bowel movement, urgency and heaviness, but the discharge is mostly mucus-pus-blood, and the shape of stool has changed at this time, and the stool is getting thinner and thinner. 3. As the cancer infiltrates around the circumference of the intestinal wall, the intestinal cavity is narrowed, especially at the junction of rectosigmoid colon, which is mostly a narrow type of hard cancer, and it is very easy to cause obstruction. Patients with advanced rectal cancer, due to long-term chronic consumption of the disease, will appear some systemic cachexia. In addition, unexplained anemia may appear. Patients must pay attention to timely examination and treatment in professional hospitals. 4.In the late stage, bowel cancer often invades the surrounding tissues and organs, such as bladder and prostate and other adjacent tissues, causing urinary frequency, urinary urgency and difficulty in urination. Invasion to the presacral plexus causes pain in the sacrococcygeal and lumbar areas. Rectal cancer can also metastasize to the liver distantly, causing hepatomegaly, ascites, jaundice, and even malignant fluid, etc. Complications 1.Intestinal obstruction Intestinal obstruction is the most common complication of bowel cancer patients. Due to the gradual enlargement of tumor, the intestinal lumen becomes narrower and narrower, and the passage of intestinal contents is obstructed, resulting in mechanical intestinal obstruction. Sometimes it is not caused by tumor completely blocking intestinal cavity, but with the increase of tumor, it stimulates local intestinal cavity to occur inflammatory edema and food blockage, resulting in abdominal pain, abdominal distension, vomiting, anal stoppage of exhaustion and defecation, etc. 70% of intestinal cancer obstruction is located in the left hemicolectomy. 2.Bleeding Acute hemorrhage rarely occurs in intestinal cancer because the lesion is closer to the anus, and the blood is mostly bright red or dark red, and the blood and stool are separated. Only when the bleeding is slightly more, the stool is brownish red and jam-like. 3.Intestinal perforation When the intestine is perforated, it mainly shows the symptoms of acute abdomen, abdominal muscle tension, pressure pain, rebound pain, and x-ray examination shows crescent-shaped free gas under the patient’s diaphragm. Perforation may be related to these factors 1. Ulcerated and infiltrating type of cancer: this type of intestinal cancer may not occur intestinal obstruction, it is due to excessive tumor growth and insufficient nutrition in the center of cancer cells to cause cancerous tissue to slowly necrotize and fall off, forming intestinal perforation. 2.Intestinal obstruction caused by tumor: the site of intestinal perforation is mostly at the proximal end of the obstruction. Neuralgia Neuralgia is the pain caused by the tumor pressing the sciatic nerve or the closed nerve root in the lumbosacral area. After knowing the symptoms of intestinal cancer, you should pay more attention to your body condition, and if any of the above symptoms appear, please follow the doctor’s advice to treat them. You should not trust the prescriptions to avoid the bad consequences. The symptoms of bowel cancer are mainly manifested as change of stool habit, so you must pay attention to these subtle changes in your future life, which may be the early stage of the disease.