Where are the main symptoms of colon cancer?

Where are the main symptoms of colon cancer? I believe many people have this question. Only if we understand its symptoms can we discover the disease earlier and treat it early. Let us follow the experts to learn about the symptoms of colon cancer .

1. Abdominal pain and digestive tract irritation symptoms: Most patients have varying degrees of abdominal pain and discomfort, such as dull abdominal pain, right-sided abdominal fullness, nausea, vomiting, and loss of appetite. Symptoms often worsen after eating, sometimes accompanied by intermittent diarrhea or constipation, and are easily confused with chronic appendicitis, ileocecal tuberculosis, ileocecal segmental enteritis, or lymphomas that are common in the right lower abdomen. Hepatic flexure cancer of the colon can present as paroxysmal colic in the right upper abdomen, similar to chronic cholecystitis. It is generally believed that pain in right-sided colon cancer often reflects to the upper part of the navel; pain in left-sided colon cancer often reflects to the lower part of the navel. If the tumor penetrates the intestinal wall and causes local inflammatory adhesions, or forms a local abscess after chronic perforation, the pain site is the site of the tumor. This is one of the symptoms of colon cancer.

2. Abdominal masses: generally irregular in shape, hard in texture, and nodular in surface. Transverse colon and sigmoid colon cancers have a certain degree of mobility and mild tenderness in the early stage. If ascending and descending colon cancers have penetrated the intestinal wall and adhered to the surrounding organs, chronic perforation to form abscesses or pierced through adjacent organs to form internal fistulas, the masses are mostly fixed, with unclear edges and obvious tenderness.

3. Changes in bowel habits and stool characteristics: This is the result of ulcers and secondary infections caused by tumor necrosis. Bowel habits change due to toxins stimulating the colon, with an increase or decrease in bowel movements, and sometimes diarrhea and constipation alternating. There may be abdominal cramps before defecation, which are relieved after defecation. If the tumor is located lower or in the rectum, there may be symptoms of rectal irritation such as anal pain, difficulty in defecation, or tenesmus. The stool is often unformed and mixed with mucus, pus, and blood. Sometimes it contains a large amount of blood and is often misdiagnosed as dysentery, enteritis, hemorrhoidal bleeding, etc.

4. Symptoms of anemia and chronic toxin absorption: The necrosis of the tumor surface forms ulcers, which may cause continuous small amounts of bleeding. The blood mixed with feces is not easy to attract the patient's attention. However, due to chronic blood loss, toxin absorption and malnutrition, anemia, emaciation, weakness and weight loss may occur. Late-stage patients have edema, hepatomegaly, ascites, hypoproteinemia, cachexia and other phenomena. If the tumor penetrates the stomach and bladder to form an internal fistula, corresponding symptoms may also occur. This is a symptom of colon cancer.

The above is an introduction to the symptoms of colon cancer. Through the above content, have you gained a deeper understanding of the relevant knowledge of colon cancer? I hope the above content can be helpful to you, and I also hope that patients can actively treat and recover soon!

For more information, please visit the colon cancer special topic at http://www..com.cn/zhongliu/jca/ or consult an expert for free. The expert will then give a detailed answer based on the patient's specific situation.