Information about hemorrhoids, rectal bleeding, causes, symptoms and treatments. Tips for prevention as well as natural treatments of hemorrhoids. Description of all kinds of anomalies that can motivate rectal bleeding.

Monday, January 23, 2012

External Hemorrhoids

External hemorrhoids occur when there is dilation of the external rectal plexus or thrombosis following an episode of constipation, diarrhea, heavy lifting or valsalva from sneezing, coughing or childbirth. The patient will notice an often-painful perianal lump and may have some bleeding associated with it. External hemorrhoids usually pose mild to little discomfort and will largely resolve on there own if homeostasis is restored.
External anal skin tags found on examination are the remnants of previous external hemorrhoids.
If however the hemorrhoid becomes thrombosed, a cycle of acute edema and pain is set up which may lead to surgical intervention. As the lesion becomes increasingly distended, varying degrees of pain and swelling can be found which is often exacerbated by passage of stool or from prolonged sitting. The patient may report that there is bleeding after stool due to a disruption of the hemorrhoid.
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