Hemorrhoids involve the blood vessels that line the anus. Pressure on the walls of the rectum weakens the muscles that support the hemorrhoidal vessels. They then become enlarged and lose their support and result in a sac-like protrusion inside the rectal canal (called internal hemorrhoids)...
Source: Harvard Decision Guide
When To Call A Professional Call your doctor whenever you have bleeding from your rectum. Even if you have been treated for bleeding hemorrhoids in... Read more »
Source: ADAM Encyclopedia
Hemorrhoids are painful, swollen veins in the lower portion of the rectum or anus.Alternative NamesRectal lump; Piles; Lump in the rectum Causes,... Read more »
Source: ADAM Encyclopedia
Hemorrhoid surgery is the removal of swollen veins around the anus.See also: HemorrhoidsAlternative NamesHemorrhoidectomyDescriptionHemorrhoid... Read more »
Source: HealthCentral Encyclopedia
Article updated and reviewed by Kevin Knopf, MD, MPH; Director of Clinical Research, Annapolis Oncology Center and Associate Staff, Johns Hopkins... Read more »
Source: ADAM Encyclopedia
Biopsy - rectumNormal ValuesThe anus and rectum appear normal in size, color, and shape. There should be no evidence of bleeding, polyps,... Read more »