Can colonoscopy detect colon cancer?

Can colonoscopy detect colon cancer? After years of popular science propaganda, I believe everyone must know that tumor treatment emphasizes the word "early", early detection, early diagnosis, and early treatment. It must be emphasized that early detection is the key to dealing with colon cancer. The incidence of colon cancer in high-risk groups is several times or even dozens of times higher than that of the general population, so early screening is very necessary.

People with a family history of colorectal cancer

1. This mainly refers to those who have direct relatives suffering from colorectal cancer, especially those who have it for more than two consecutive generations, and those who are under 50 years old. The risk of their offspring developing colorectal cancer is significantly increased, and the risk probability is nearly 20 times higher than that of the general population.

2. Those who have had a malignant tumor

Especially for people who have already had colorectal cancer, their risk of developing colorectal cancer again is about 10 times higher than that of ordinary people.

3. People with colon polyps

In particular, adenomatous polyps of the colon are themselves precancerous lesions, and nearly 80% of colorectal cancers are transformed from adenomatous polyps.

4. People aged 40 and above with symptoms in high-incidence areas

5. Suffering from inflammatory bowel disease

Sigmoidoscopy and fiber colonoscopy Although the sigmoidoscope is 25 cm long, 75% of colorectal cancers are within the range of the sigmoidoscope. Microscopic examination can not only detect cancer, but also observe its size, location and local infiltration range. Sigmoidoscopy can be used to take tissue for pathological examination. Fiber colonoscopy can provide a higher diagnosis rate and has been widely used in China. Skilled operators can insert the fiber colonoscope into the cecum and terminal ileum, and can also take pictures. It is indeed an ideal examination method. For the detection of colon cancer, colonoscopy is currently the most effective screening method, without a doubt.