Does colonoscopy hurt?

After all, this is a hard object. Although it can be bent, it still cannot change this fact. So it will still hurt. The cold instrument has no feelings. Even if the technique is gentle, it is still very unbearable to enter the rectum. Now that technology is becoming more and more advanced, colonoscopy can detect many diseases. However, special attention should be paid when using it, and people who are not suitable for it should never use it. No matter how much she begs, don't agree.

A colonoscopy is a diagnostic test used by doctors to examine the large intestine and the interior of the colon. A colonoscope is a long, flexible instrument about 1 cm in diameter that is passed through the anus into the rectum and into the large intestine, allowing the doctor to observe the interior of the colon and large intestine. The original colonoscope was mostly used for quarantine and was simpler than the modern colonoscope. Modern colonoscopes are often equipped with cameras and are longer in size, so they can examine lesions at a deeper level.

Clinical significance

Applicable diseases: colorectal polyps; colorectal inflammatory diseases such as ulcerative colitis; chronic colitis; colon cancer, etc.

Contraindications

The indications for electronic colonoscopy are quite broad. Electronic colonoscopy can be performed in any of the following situations without contraindications.

1. Unexplained lower gastrointestinal bleeding.

2. Chronic diarrhea of ​​unknown cause.

3. Unexplained abdominal mass, where lesions of the large intestine and terminal ileum cannot be ruled out.

4. Unexplained pain in the lower abdomen.

5. Patients suspected of having benign or malignant colon tumors, but cannot be diagnosed by X-ray examination.

6. Suspected of having chronic inflammatory intestinal disease.

7. If abnormalities are found during barium enema or intestinal examination, the nature and extent of the lesions need to be further clarified.

8. Determine the extent of lesions before colon cancer surgery, and conduct reexamination and follow-up of efficacy of colon cancer and polyps surgery.

9. Low intestinal obstruction of unknown cause.

Currently, colonoscopy is not as painful as people imagined in the past, and most people can accept it.

In addition: Patients can also request a painless colonoscopy under general anesthesia. When they take a nap, the colonoscopy will be done, but the risks of general anesthesia cannot be ignored.

Contraindications for electronic colonoscopy: Endoscopic examination should not be performed when the anal canal and rectum are narrow and the endoscope cannot be inserted. Patients with symptoms of peritoneal irritation, such as intestinal perforation, peritonitis, etc., are contraindicated in undergoing this examination. Avoid colonoscopy if there is acute infection of the anorectal canal or painful lesions, such as anal fissures or perianal abscesses. Women should not be examined during menstruation and should be examined with caution during pregnancy. People who are elderly, frail, have severe hypertension, anemia, coronary heart disease, or heart and lung failure should not undergo endoscopic examination. This examination is contraindicated in patients who are suspected of having perforation, intestinal fistula, or extensive abdominal adhesions in the early stage after abdominal or pelvic surgery.

1. What is colonoscopy?

Colonoscopy is a procedure that uses a flexible fiber tube about 140cm long with a light source and a miniature electronic camera at the end. It is slowly inserted into the large intestine through the anus to examine lesions, tumors or ulcers in the large intestine. If necessary, tissue examination or colon polypectomy can be performed.

2. Which type of patients need this examination?

1. Unexplained lower gastrointestinal bleeding. 2. Chronic diarrhea of ​​unknown cause; 3. Low intestinal obstruction of unknown cause; 4. Suspected tumors of the large intestine or terminal ileum; 5. Patients with colorectal polyps, tumor bleeding and other lesions requiring colonoscopy; 6. Patients who need regular colonoscopy after colon surgery and colonoscopy treatment; 7. Colorectal cancer screening.

3. Preparation before inspection

1. The examination date will be arranged by the doctor. Examination location: outpatient gastroscopy room.

2. Bowel preparation is required for this examination.

3. Three days before the examination, you should eat a semi-liquid diet with no or little residue, and do not eat vegetables or fruits. If intestinal polyps are suspected and the patient is preparing for electroresection, he or she should avoid eating milk and dairy products.

4. Take 25 ml of castor oil orally at 6:30 am on the day of examination, and do not eat breakfast. Start taking the enema solution at 9:30 am. Mix each packet with 1000ml of boiled water. Drink a total of 3000ml of enema solution within 1.5 hours. If there is still fecal residue in the stool, you need to drink another 1000ml of colon cleansing solution until the excretion is clear water. If nausea or vomiting occurs, tell your doctor or nurse and give them a cleansing enema if necessary.

5. You can eat at 2 pm, but avoid eating liquid food. At 3 pm, you will be taken to the outpatient gastroscopy room by the nursing staff. 30 minutes before the examination, the nurse will inject 10 mg of An and 0.5 mg of atropine to relieve the discomfort caused by the colonoscopy.

6. It is not advisable to bring mobile phones and pagers into the gastroscopy room to avoid interfering with the normal operation of the machine.

IV. Inspection Process

1. Lie on your left side with your knees bent.

2. The doctor will slowly insert the colonoscope through the anus and observe the intestinal cavity for any lesions. You may feel abdominal distension and the urge to defecate. At this time, you should take a deep breath to relax yourself.

3. The entire inspection process takes about 20 to 30 minutes.

5. Things to note after the inspection

1. Please stay in bed and rest after biopsy or polypectomy. Do not do strenuous exercise or barium enema examination within three days. After electrosurgical polypectomy, the doctor will generally fast for three days and give intravenous infusion according to the patient's condition. If there is no blood in the stool and the condition is satisfactory, you can be discharged from the hospital.

2. In the early stage, you may feel abdominal distension and discomfort due to the accumulation of air in the large intestine, but it will gradually disappear after a few hours. If your abdominal distension is obvious, you should tell your doctor or nurse, who will give you appropriate treatment.

3. If there are no special conditions, you can take normal food or eat according to the doctor's advice.

4. If you experience persistent abdominal pain or excessive bleeding in your stool, you should tell your doctor immediately to avoid accidents.