The external hemorrhoid feels like a hard, extremely sensitive lump. In one sense, everyone has hemorrhoids or pilesthe pillow-like clusters of veins that lie just beneath the mucous membranes lining the lowest part of the rectum and the anus. What surgical procedures are used to treat hemorrhoids? Aliment Pharmacol Ther ; 31 Suppl 1: Hemorrhoids are usually caused by increased pressure due to pregnancy, being overweight, or straining during bowel movements. They may be twisted….
However, straining or irritation when passing a stool can damage the surface of a haemorrhoid causing it to bleed.
Haemorrhoids (piles) - symptoms and treatment