What are the symptoms of colon cancer

Colon cancer is a common malignant tumor of the digestive tract that occurs in the colon. It is more likely to occur at the junction of the rectum and the sigmoid colon. The highest incidence rate is in the 40-50 age group, with a male-female ratio of 2-3:1. The incidence rate ranks third among gastrointestinal tumors. So what are the symptoms of colon cancer? Let's learn about it together.

Colon cancer patients show early symptoms of abdominal distension and indigestion, followed by changes in bowel habits, abdominal pain before defecation, and later mucus or mucopurulent bloody stools. After tumor ulceration, blood loss, and toxin absorption, poisoning symptoms such as anemia, low fever, fatigue, weight loss, and edema often occur. If abdominal distension, abdominal pain, constipation, or constipation occurs, physical examination shows abdominal distension, intestinal type, local tenderness, and strong bowel sounds, it indicates that incomplete or complete low intestinal obstruction may occur.

If the tumor infiltrates and adheres to the omentum and surrounding tissues, an irregular mass may be formed with a certain degree of mobility. In the late stage, there may be signs of liver metastasis such as jaundice, peritoneal effusion, edema, cachexia, a mass in the anterior rectal fossa, and enlarged supraclavicular lymph nodes, which are manifestations of distant spread and metastasis of the tumor.