Blood clot. Occasionally a clot can form inside of a hemorrhoid. This is termed a thrombosed hemorrhoid. Although not risky, it might be exceptionally painful and in some cases ought to be drained. Blood can pool within an exterior hemorrhoid and type a clot, named a thrombus. A thrombosed hemorrhoid https://www.sgvascularctr.com/varicose-vein-treatment-in-singapore-answers-to-your-most-common-questions/