Dr.Sonali Gautam

M.D. (Medicine), D.N.B.(Gastroenterology)

Home Colonoscopy

What is a colonoscopy?


Colonoscopy lets your doctor examine the lining of your large intestine (colon) for abnormalities by inserting a thin flexible tube, as thick as your finger, into your anus and slowly advancing it into the rectum and colon. This instrument, called a colonoscope, has its own lens and light source and it allows your doctor to view images on a video monitor.

Why is colonoscopy recommended?

  • Unexplained changes in bowel habits.
  • Bleeding from the back passage.
  • Weight loss.
  • Chronic constipation or chronic diarrhoea.
  • History of polyps.
  • Screening for cancer.

What preparations are required?

  • Dietary Restrictions
  • Cleansing Solution (to be taken over 1-2 Hours)
  • The colon must be completely clean for the procedure to be accurate and comprehensive, so be sure to follow your doctor’s instructions carefully.

Can I take my current medications?

    Most medications can be continued as usual, but some medications can interfere with the preparation or the examination.Inform about Medication you’re taking
  • Hypertension
  • Diabetes
  • Thyroid
  • Heart Diseases

What happens during colonoscopy?

In some cases, the doctor cannot pass the colonoscope through the entire colon to where it meets the small intestine. Your doctor will advise you whether any additional testing is necessary.

What happens after a colonoscopy?

You will be monitored until most of the effects of the sedatives have worn off. You might have some cramping or bloating because of the air introduced into the colon during the examination. This should disappear quickly when you pass gas. Your physician will explain the results of the examination to you.

  • Bleeding
  • Pain
  • Reaction to Sedatives
  • Fever and Chills