Blood clot. At times a clot can variety inside a hemorrhoid. This is called a thrombosed hemorrhoid. Whilst not hazardous, it may be incredibly painful and from time to time really should be drained. The veins throughout the anus are likely to stretch stressed and may bulge or swell. Hemorrhoids https://www.sgvascularctr.com/varicose-vein-treatment-in-singapore-answers-to-your-most-common-questions/