Find Information About:

Drugs & Supplements

Get information and reviews on prescription drugs, over-the-counter medications, vitamins, and supplements. Search by name or medical condition.

Pill Identifier

Pill Identifier

Having trouble identifying your pills?

Enter the shape, color, or imprint of your prescription or OTC drug. Our pill identification tool will display pictures that you can compare to your pill.

Get Started

My Medicine

Save your medicine, check interactions, sign up for FDA alerts, create family profiles and more.

Get Started

WebMD Health Experts and Community

Talk to health experts and other people like you in WebMD's Communities. It's a safe forum where you can create or participate in support groups and discussions about health topics that interest you.

  • Second Opinion

    Second Opinion

    Read expert perspectives on popular health topics.

  • Community


    Connect with people like you, and get expert guidance on living a healthy life.

Got a health question? Get answers provided by leading organizations, doctors, and experts.

Get Answers

Sign up to receive WebMD's award-winning content delivered to your inbox.

Sign Up

Colorectal Cancer Health Center

Font Size

Colorectal Cancer Glossary of Terms

Abdominoperineal resection: usually performed for a lower rectal or anal cancer. Involves the surgical removal of the anus, rectum, and sigmoid colon, along with associated lymph nodes, resulting in the need for a permanent colostomy.

Accidental Bowel Leakage: also called fecal incontinence. The inability to retain stool, resulting in bowel accidents.

Recommended Related to Colorectal Cancer

Colorectal Cancer: Tests

Find out how a sigmoidoscopy is used to look for early signs of colon cancer and learn what happens during the procedure. Flexible Sigmoidoscopy

Read the Colorectal Cancer: Tests article > >

Acetaminophen: a drug that reduces pain and fever, but not inflammation. It is sold under the brand name Tylenol.

Acute: abrupt onset that usually is severe; happens for a short period of time.

Adenoma: benign (non-cancerous) polyps, or growths, that are considered the first step toward colon and rectal cancer.

Adhesion: a band of scar tissue that connects two surfaces of the body that are normally separate. Usually due to inflammation or injury, including surgery.

Adjuvant therapy: additional treatment, or add-on treatment, provided with the primary treatment to prevent cancer recurrence.

Adverse effect: a negative or harmful effect.

Analgesic: medicine to relieve pain.

Anemia: a condition in which a person has a low red blood cell count. It occurs when there is not enough hemoglobin in a person's blood. Hemoglobin is the substance in the red blood cells that enables the blood to transport oxygen throughout the body.

Antibiotic: medication used to treat bacterial infections.

Antibodies: proteins produced by the body to protect itself from foreign substances, such as bacteria or viruses.

Antigens: substances that provoke an immune response in the body. The body produces antibodies to fight antigens, or harmful substances, to try to eliminate them.

Anti-inflammatory: medication used to reduce pain, swelling, or other irritation caused by inflammation.

Air contrast barium enema: also called double contrast barium enema -- an X-ray examination of the entire large intestine (colon) and rectum in which barium and air are introduced gradually into the colon by a rectal tube.

Anal fissure: a split or crack in the lining of the anal opening, usually caused by the passage of very hard or watery stools.

Anastomosis: a surgical joining of two ducts, blood vessels, or bowel segments to allow flow from one to the other.

1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14

Today on WebMD

Colorectal cancer cells
The right diagnosis is the most important factor.
man with a doctor
Our health check will steer you in the right direction.
sauteed cherry tomatoes
Fight cancer one plate at a time.
bladder cancer x-ray
Do you know the warning signs?
Colon vs Rectal Cancer
New Colorectal Treatments
can lack of sleep affect your immune system
Cancer Facts Quiz
Virtual Colonoscopy
Picture of the Colon
Vitamin D