Hemorrhoids are swollen blood vessels that are found in and around the anus and lower rectum. They can be internal, which means inside the anus. Or, they may be external, which means they are found outside the anus.
The blood vessels around the anus swell and may bleed or cause other symptoms. The exact cause of hemorrhoids is not always clear.
Hemorrhoids are related to dilated blood vessels, but the exact cause is not always clear. Some types of hemorrhoids run in families. Other factors that increase your risk for hemorrhoids include:
You may have hemorrhoids for years without them causing any health problems. If you do have symptoms, they most often include:
To diagnose hemorrhoids, your doctor will start with a medical history and physical exam. As part of the exam, your doctor will feel for internal hemorrhoids by inserting a lubricated finger into your rectum. This is called a digital exam. Sometimes your doctor may use a hollow, lighted tube called an anoscope to view internal hemorrhoids. To rule out other disorders, he or she may order a sigmoidoscopy or proctoscopy. These tests also use a lighted tube, but look at your bowel, rather than your rectum. Your doctor may also order blood tests.
One of the best ways to avoid hemorrhoids is to prevent the pressure and straining that come from constipation. To lessen the impact of your hemorrhoids, take these actions:
Many times, hemorrhoids are related to liver disease caused by alcohol abuse. It's important to avoid alcohol intake or, if you must drink, to do so only in moderation.
If hemorrhoids are not effectively treated, you may develop infections as a result. You are at risk for an anorectal abscess or anal fissure. You may also lose the ability to control your bowel movements. If bleeding continues, a low red blood cell count, called anemia, can develop.
Hemorrhoids are not contagious and pose no risk to others.
Many times, hemorrhoids resolve without any type of treatment. Take these measures to ease your pain, decrease swelling, and regulate your bowel movements:
If hemorrhoids are severe or treatment is not effective, the doctor may recommend hemorrhoid surgery. A variety of procedures can be used to remove hemorrhoids or reduce their size.
Medicines used to treat hemorrhoids may cause allergic reactions. Surgery can cause bleeding, infection, or allergic reaction to anesthesia.
Symptoms may subside for a time if you prevent straining when you have a bowel movement. However, flare-ups of hemorrhoids are common. Hemorrhoid surgery may provide a permanent cure for the problem.
The doctor will check for further problems by doing a digital exam during your regular check-ups. Always report any new or worsening symptoms to your doctor.
Author:Gail Hendrickson, RN, BS
Date Written:
Editor:Ballenberg, Sally, BS
Edit Date:10/31/01
Reviewer:Adam Brochert, MD
Date Reviewed:09/26/01
Professional Guide to Diseases, Sixth Edition. Springhouse: Springhouse Corporation, 1998.
Griffith, H. Winter. Instructions for Patients. Philadelphia:W.B. Saunders Company,1994.
NIH Publication No. 95-3021, National Digestive Disease Information Clearinghouse, 2 Information Way, Bethesda, MD 20892