Colorectal cancer is the second most common cancer in the world after lung cancer. In the early stages, the disease has no special symptoms, making it easy for patients to be subjective, when the disease is detected, the condition has rapidly decreased. Therefore, when there are abnormal signs in the gastrointestinal tract such as abdominal pain, prolonged diarrhea, bloody stools, it is recommended to go to the doctor for cancer screening.

Along with the development of modern medicine, endoscopic techniques of esophagus, stomach, duodenum with narrow band of light (NBI) have created a breakthrough in the screening and diagnosis of gastrointestinal cancer. at an early and very early stage.

Endoscopic gastrointestinal polypectomy is a technique to remove digestive polyps from the lining of the digestive tract and remove them for cytological examination, usually polyps in the esophagus, stomach, duodenum, and rectum. , Colon. The technique of gastrointestinal polyp removal also has many advantages and positive implications in preventing cancerous complications of these polyps.