How to do colonoscopy? Is it painful? How long has it been?

Colonoscopy sends an endoscope into the intestine through the mouth or anus for direct observation. The pain degree of ordinary colonoscopy varies with the patient's tolerance, and painless colonoscopy is generally painless. Generally speaking, the time of colonoscopy is about half an hour, and that of colonoscopy is 1~2 hours. The patient's condition, medical level and other factors will affect the examination time.

During colonoscopy, the doctor will send the colonoscopy into the digestive tract through the mouth or anus according to the patient's condition, and then check the situation of different parts of the intestine in turn to find ulcers, lumps and other lesions. If necessary, some intestinal tissues can be taken for pathological examination, so as to judge the nature of the lesions more accurately.

Because colonoscopy enters the human body through the mouth or anus, during and after the examination, there may be discomfort in the part where colonoscopy passes, such as slight pain and bleeding, and many of them can get better by themselves.

Generally speaking, colonoscopy takes about half an hour, and colonoscopy 1~2 hours. If the condition is complicated, or operations such as taking materials are needed, the corresponding examination time will naturally be extended due to the complexity of the condition. In addition, the operation requirements of colonoscopy are high, and the examination risk is high. The examination time is more affected by the patient's condition and medical level.

Colonoscopy is of great significance for finding intestinal diseases, and people with high acceptance can incorporate colonoscopy into the routine items of physical examination. You can make preparations according to the doctor's requirements before the examination. For example, eat a low-residue, low-fiber or liquid diet 1 day before examination, fast for 8 ~ 12 hours before examination, and ban water for 4 ~ 6 hours, and take enough laxatives such as polyethylene glycol according to time until clean water is discharged.