Advanced General Surgery


Colonoscopy Procedure: What Happens & How to Prep. Schedule Your Appointment Today.


Colonoscopy is a procedure used to observe and detect changes or irregularities inside the rectum and colon (large intestine).

The General Surgeon or Gastroenterologist uses a colonoscope (thin tube) containing a small attached camera, inserts it into the rectum, and moves it into the large intestine (colon), taking pictures and viewing all of this on a screen.

During the Colonoscopy, the General Surgeon or Gastroenterologist may remove the abnormal tissues through the colonoscope.

Tissue samples (biopsies) may be taken during a Colonoscopy.

Before the Colonoscopy

The General Surgeon or Gastroenterologist will review your medical history, ask questions about your symptoms, lifestyle, medical history, and if you are taking any medications.

For the Colonoscopy preparation, it will be necessary to empty the colon, so you should not eat any food or drink for 6 to 8 hours before the procedure. You may be asked to take a laxative and use an enema kit one night before the process.

Follow all the instructions of your General Surgeon or Gastroenterologist.

During the Colonoscopy

Usually, the duration of the Colonoscopy is between 30 to 60 minutes; using a sedative to reduce discomfort.

During the procedure, you will wear a gown; you will lie on the table, bending your knees towards your chest. The General Surgeon or Gastroenterologist will introduce a colonoscope which contains a small video camera at the tip, allowing to observe the images through a screen, therefore to analyze the interior of the colon.

The General Surgeon or Gastroenterologist may insert instruments through the canal to take tissue samples (biopsies) or remove polyps or other abnormal tissue areas.

After the Colonoscopy


After the Colonoscopy, you will be staying in the recovery room where you can stay for a couple of hours, and the doctor can monitor and review your symptoms, while the sedative wears off.

You may have some symptoms, such as:

  • Inflammation

  • Upset stomach, gas, colic

¿Why do I need a Colonoscopy?

The General Surgeon or Gastroenterologist may recommend a Colonoscopy to evaluate:

  • Possible causes of abdominal pain

  • Colon cancer screening, people are more likely to suffer colon cancer from the age of 50

  • Detect polyps, in case of having previously presented polyps; the General Surgeon or Gastroenterologist may suggest a follow-up Colonoscopy to be able to extract them

Make your appointment with the General Surgeon or Gastroenterologist in case of presenting any of the conditions above or in case of detecting another abnormal symptom.

When consulting your Doctor, try to keep a record of your pain with a detailed description of the symptoms, their duration, and what you think triggered them. Also, mention any medications you are taking.