Generally, electronic colonoscopy will have different degrees of pain, the colon is relatively long and colonoscopy is more complicated than gastroscopy, in addition, the doctor is to send gas while doing colonoscopy through the lumen into the mirror, so more or less there will be different degrees of pain. However, there are some individual differences in pain, some people feel severe pain that cannot be tolerated, while some people only feel mild pain, or even just a feeling of abdominal distension without the feeling of pain. For electronic colonoscopy, the main purpose is to understand the intestinal mucosal lesions, such as inflammatory bowel disease, colon polyps, colon mass, etc.. If you are afraid of e-colonoscopy, you can also choose painless e-colonoscopy, which can be chosen according to your personal wishes.