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Post  Hummingbird on Fri Sep 04, 2009 7:47 pm

Hemorrhoids, also called piles, are swollen and inflamed veins in your anus and lower rectum. Hemorrhoids may result from straining during a bowel movement or from the increased pressure on these veins during pregnancy, among other causes.

A sometimes embarrassing topic of discussion, hemorrhoids are one of the most common ailments. By age 50, about half of adults have had to deal with the itching, discomfort and bleeding that can signal the presence of hemorrhoids.


Signs and symptoms of hemorrhoids may include:

* Painless bleeding during bowel movements — you might notice small amounts of bright red blood on your toilet tissue or in the toilet bowl
* Itching or irritation in your anal region
* Pain or discomfort
* Hemorrhoids protruding from your anus
* Swelling around your anus
* A sensitive or painful lump near your anus
* Leakage of feces

Hemorrhoid symptoms usually depend on the location. Internal hemorrhoids lie inside the rectum. You can't see or feel these hemorrhoids, and they usually don't cause discomfort. But straining or irritation when passing stool can injure a hemorrhoid's delicate surface and cause it to bleed. Occasionally, straining can push an internal hemorrhoid through the anal opening. This is known as a protruding or prolapsed hemorrhoid and can cause pain and irritation.

External hemorrhoids are under the skin around your anus. When irritated, external hemorrhoids can itch or bleed. Sometimes blood may pool in an external hemorrhoid and form a clot (thrombus), resulting in severe pain, swelling and inflammation.

When to see a doctor
Bleeding during bowel movements is the most common sign of hemorrhoids. But rectal bleeding can occur with other digestive diseases, including colorectal cancer and anal cancer. Don't assume that bleeding is coming from hemorrhoids without consulting a doctor. Your doctor can do a physical examination and perform other tests to diagnose hemorrhoids and rule out more serious conditions or diseases. You should also seek medical advice if your hemorrhoids cause pain, bleed frequently or excessively, or don't improve with home remedies.

If your hemorrhoid symptoms began along with a marked change in bowel habits or if you're passing black, tarry or maroon stools, blood clots or blood mixed in with the stool, consult your doctor without delay. These types of stools can signal more extensive bleeding elsewhere in your digestive tract.

Seek emergency care if you experience large amounts of rectal bleeding, lightheadedness, dizziness or faintness.

The veins around your anus tend to stretch under pressure and may bulge or swell. Swollen veins — hemorrhoids — can develop from an increase in pressure in the lower rectum. Factors that might cause increased pressure include:

* Straining during bowel movements
* Sitting for long periods of time on the toilet
* Chronic diarrhea or constipation
* Obesity
* Pregnancy
* Anal intercourse

It's also possible to inherit a tendency to develop hemorrhoids. Hemorrhoids are more likely as you get older because the tissues that support the veins in your rectum and anus can weaken and stretch with aging.

Complications of hemorrhoids are rare but include:

* Anemia. Chronic blood loss from hemorrhoids may cause anemia, in which you don't have enough healthy red blood cells, resulting in fatigue and weakness.

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