An intestinal endoscopy?

If there are lesions, you can take a biopsy for pathological examination to know whether there is cancer or not. Colonoscopy or proctoscopy alone can not make a complete diagnosis, but it can be generally identified. It is meaningless to guess by testing.

Endoscopic examination of the bowel usually shows the rectum, sigmoid colon, descending colon, transverse colon, ascending colon, cecum and a small section of the small intestine connected to the large intestine. By immobility, not only can intestinal lesions be clearly detected, but also some intestinal lesions can be treated.