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: ADAM Encyclopedia
Hemorrhoid surgery is the removal of swollen veins around the anus.See also: HemorrhoidsAlternative NamesHemorrhoidectomyDescriptionHemorrhoid... 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: Harvard Decision Guide
What Is It? A hemorrhoid is a bulging, distended vein in the area around the anus, the opening through which stool passes. This happens when pressure... Read more »
Source: ADAM Encyclopedia
www.ccfa.org -- Crohn's & Colitis Foundation of Americawww.gastro.org -- American Gastroenterological Associationwww.acg.gi.org -- American... Read more »