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Hemorrhoids consist of both arteries and veins in the rectum which can become engorged or inflamed due to an increase in venous pressure. Hemorrhoids are caused by increased pressure in the hemorrhoid system of vessels. These vessels can become dilated when exposed to chronic or intermittent pressure. Hemorrhoids may become symptomatic as a result of activities that cause an increase in venous pressure. Pregnancy, constipation, prolonged sitting, obesity, low-fiber diet, physical exertion and straining during bowel movements all may contribute to the exacerbation of hemorrhoids. The most common symptoms of internal hemorrhoids are painless bleeding and protruding bulge. There are many types of anorectal pathology that can cause rectal bleeding. It is imperative to notify your physician immediately if you have this symptom so the cause can be determined. Symptomatic hemorrhoids are often associated with discharge, rectal itching, tissue prolapse and aching after defacation. |
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WHAT IS A HEMORRHOID?