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Colonoscopy Colonoscopia

Colonoscopy

Colonoscopy is used to view the inside of your lower digestive tract (colon and rectum). It can help screen for colon cancer and can also help find the source of abdominal pain, bleeding, and changes in bowel habits. The test is usually done in the hospital on an outpatient basis. During the exam, the doctor can remove a small tissue sample ( a biopsy) for testing. Small growths, such as polyps, may also be removed during colonoscopy.

Camera lets doctor view inside of colon on a video screen
A camera attached to a flexible tube with a viewing lens is used to take video pictures.

Getting Ready

  • Be sure to tell your doctor about any medications you take. Also tell your doctor about any health conditions you may have.

  • Discuss the risks of the test with your doctor. These include bleeding and bowel puncture.

  • Your rectum and colon must be empty for the test. So be sure to follow the diet and bowel prep instructions exactly. If you don't, the test may need to be rescheduled.

  • Ask your doctor whether you need to have a friend or family member prepared to drive you home after the test.

Lower digestive tract
Colonoscopy provides an inside view of the entire colon.

During the Test

  • You are given sedating (relaxing) medication through an IV line. You may be drowsy or completely asleep.

  • The procedure takes 30 minutes or longer.

  • The doctor performs a digital rectal exam to check for anal and rectal problems. The rectum is lubricated and the scope inserted.

  • If you are awake, you may have a feeling similar to needing to have a bowel movement. You may also feel pressure as air is pumped into the colon. It's okay to pass gas during the procedure.

After the Test

  • You may discuss the results with your doctor right away or at a future visit.

  • Try to pass all the gas right after the test to help prevent bloating and cramping.

  • After the test, you can go back to your normal eating and other activities.

Risks and Possible Complications Include:

  • Bleeding

  • A puncture or tear in the colon

  • Risks of anesthesia

Date Last Reviewed: 2007-01-15T00:00:00-07:00

Date Last Modified: 2005-10-14T00:00:00-06:00

For top-quality, up-to-date care for gastrointestinal problems, trust the board-certified, experienced GI specialists trusted by thousands of patients and their doctors for nearly 30 years. Call Gastroenterology Consultants at (281) 481-9400 or fill out our online Request an Appointment form to schedule your consultation with us.

Gastroenterology Consultants

Ellington

444 FM 1959, Suite A,
Houston, TX 77034
Direct Phone: 281-481-9400

St. John

2060 Space Park Drive, Suite 306
Nassau Bay, TX 77058
Direct Phone: 281-892-2460

Clear Lake

250 Blossom Street, Suite 210 Webster, TX 77598
Direct Phone: 281-316-1119

Pasadena

4211 Fairmont Parkway
Pasadena, TX 77504
Direct Phone: 832-456-8434

Pearland

15015 Kirby Dr. Ste.200A
Pearland, TX 77047
Direct Phone: 713-343-6360

League City

2555 S. Gulf Freeway Ste. 500
League City, TX 77573
Direct Phone: 281-481-9400

Gastroenterology Consultants is a leader in advanced, comprehensive gastrointestinal care. We specialize in up-to-date gastrointestinal care, which includes screening and treatment for colon cancer, heartburn and acid reflux, esophageal disorders and difficulty swallowing, peptic ulcers, H. pylori, gallstones and other gallbladder disorders, rectal bleeding and hemorrhoids, malabsorption and celiac disease, liver diseases - hepatitis C, hepatitis B, cirrhosis, fatty liver disease, hepatoma and liver cancer, abdominal pain, noncardiac chest pain, ulcerative colitis, Crohn's disease, pancreatitis and pancreatic cancer, anemia, nausea and vomiting, gas and bloating and lactose intolerance

Gastroenterology Consultants also offers colonoscopy screening for colorectal cancer, EGD & capsule endoscopy small-bowel, endoscopic ultrasound, Bravo 48-hour pH monitoring, H. pylori breath testing, esophageal manometry and impedance testing, hemorrhoid band ligation, esophageal dilatation, advanced therapeutic ERCP, Biologic therapy, treatment of Barrett's esophagus, common bile duct stones and endoscopic mucosal resection.