Hemorrhoid Anatomy

Hemorrhoids are classified by their anatomic origin within the anal canal and by their position relative to the dentate line. Hemorrhoids are swollen blood vessels in the lower rectum.

Surgical Management Of Hemorrhoids Basicmedical Key

Thus they are categorized into internal and external hemorrhoids see.

Hemorrhoid anatomy. The venous supply of the rectum. With distention of the hemorrhoid vessels within the anal canal irritation from passage of stool and wiping can lead to excoriation and bleeding. Hemorrhoids are divided into three categories.

Other factors such as degree of discomfort bleeding comorbidities and patient preference should help. Surgical hemorrhoidectomy is the most effective treatment for hemorrhoids though it is associated with the greatest rate of complications. Hemorrhoids are central to the anorectal area and do cause pain.

Factors leading to development of hemorrhoids include hard stools from a low fiber diet limited fluid intake straining to pass bowel movements and prolonged sitting during bowel movements. Typically hemorrhoids are classified as either internal hemorrhoids inside the rectum or external hemorrhoids beneath the skin surrounding the anus. A hemorrhoidectomy is surgery to remove internal or external hemorrhoids that are extensive or severe.

They are among the most common causes of anal pathology and subsequently are blamed for virtually any anorectal complaint by patients and medical professionals alike. Vaginal pain can occur with hemorrhoids but it could be another condition. Hemorrhoid anatomy hemorrhoids are swollen veins that enlarge and develop in the lower rectum and anus.

Physiological hemorrhoids are arteriovenous cushions within the rectal corpus cavernosum which may become pathological hemorrhoids following abnormal enlargement and possible protrusion. Internal hemorrhoids are traditionally graded from i to iv based on the extent of prolapse. Well developed internal hemorrhoids are then situated usually in the right anterior right posterior and left lateral areas.

These are located classically at left lateral right anterior and right posterior positions. There are three main cushions present in the normal anal canal. These lumps are the origin of much of the pain experienced by hemorrhoids.

Hemorrhoid cushions are a part of normal human anatomy and become a pathological disease only when they experience abnormal changes. Internal above the dentate line external below the dentate line or mixed above and below the dentate line. External hemorrhoids are lumps that form around the anus but not anywhere close to the genitals.

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