Blood clot. At times a clot can variety in a very hemorrhoid. This is known as a thrombosed hemorrhoid. While not risky, it can be really painful and often really should be drained. Blood can pool within an exterior hemorrhoid and form a clot, known as a thrombus. A thrombosed https://www.sgvascularctr.com/varicose-vein-treatment-in-singapore-answers-to-your-most-common-questions/