With the improvement of living standard, more and more people pay attention to colonoscopy gastroscopy, especially in the recent stage, there are more and more patients with intestinal cancer, and colonoscopy becomes more and more important. In recent years, painless colonoscopy has been widely carried out in major hospitals, which greatly reduces the pain of colonoscopy and enables people to complete an electronic colonoscopy comfortably and happily. In the end what people should do colonoscopy Although colonoscopy is becoming more and more convenient, but we still have to do “know” when to do, what symptoms should be done, what to pay attention to, today we are introduced to the several situations suitable for colonoscopy. 1, blood in the stool Blood in the stool can not be identified as hemorrhoids or anal fissure bleeding, or failure to exclude the colon caused by the blood in the stool. If you have blood in your stool, it’s time to go to the hospital and have a colonoscopy. Although most of the blood in the stool is caused by hemorrhoids or anal fissures, we must be alert to the possibility of tumors! 2, long-term diarrhea or stool habit change Chronic diarrhea or stool habit change. If there was no constipation or diarrhea before, chronic diarrhea or constipation suddenly appeared. Or, if you usually have one bowel movement in the morning and suddenly your bowel habits change, you need to pay attention to exclude intestinal diseases, which include intestinal tumors and cancer. 3. Unexplained wasting and weakness Unexplained progressive wasting with weakness. Many diseases, especially cancer, come without a shadow. Very often, cancer is not detected, especially in the early stage, and many cancers do not have pain or itching and other discomfort. At this time, when a person suddenly appears to be wasting for unknown reasons, it is recommended to do a whole body physical examination, which includes colonoscopy. 4. Unexplained anemia Unexplained anemia. Very often, a person appears malnourished, but there is no very clear reason for it. You can see many such cases, that is, a person suddenly develops anemia, and a simple examination cannot find the problem until a colonoscopy is done to find out what the problem is. 5.Family history of bowel cancer or age over 40 years old Immediate family members with family history of colorectal cancer or adenoma. If there is such a family history, you should be highly alert and need to do colonoscopy regularly. As the incidence of colorectal cancer is getting younger and younger, we suggest that those who are older than 40 years old can have colonoscopy if they have the conditions. After reading the above cases, have you been trapped? Colonoscopy is not scary, you should treat it with normal mind, and at the same time, don’t be obsessed with colonoscopy and do it many times a year, which brings extreme pressure to your psychology and is not good for your health.