Hemorrhoids are swollen veins of anal passage which bleed and cause pain during or after bowel movements. These are of two types, internal and external, internal hemorrhoids are painless but bleed whereas external hemorrhoids are painful but usually do not bleed. Internal hemorrhoids are located deep in anal passage where there are no pain transmitters hence patient does not feel pain. External hemorrhoids are located close to anal opening and can be seen as a bump on anal lining. Whether it ...
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