Hemorrhoidal thrombectomy is a surgical procedure for the treatment of hemorrhoids, mostly used for the treatment of thrombosed external hemorrhoids, which can be used to relieve their pain and other symptoms, before and after the procedure, you should be careful to avoid smoking, drinking alcohol and so on. When thrombosed external hemorrhoids occur, symptoms such as severe localized pain and dark purplish-red lumps in the anus will occur. Hemorrhoidal thrombus aspiration is a minimally invasive procedure for the treatment of thromboembolism. It is often performed with a fine catheter suction or other device that connects to the obstructed blood vessels around the anus for direct aspiration. It is also possible to achieve symptomatic relief by suctioning out the thrombus after it has been dissolved by injection of thrombolytic drugs such as urokinase. When the above symptoms occur or when thrombosed external hemorrhoids are suspected, it is recommended to go to the hospital in time for examination, clear diagnosis and targeted treatment. Urokinase and other thrombolytic drugs need to be used under the guidance of the clinician, unauthorized use of drugs is prohibited to avoid the occurrence of adverse phenomena.