Poor blood flow is handled by the following methods: 1, poor venous blood flow, usually due to venous stenosis, occlusion or venous thrombosis, for venous thrombosis is most commonly deep vein thrombosis, which can cause swelling and pain in the limbs and also cause pain in the corresponding organs, for deep vein thrombosis given anticoagulation therapy that can significantly improve the symptoms, while for congenital venous stenosis and occlusion, the symptoms can be significantly improved by interventional stenting or surgical bypass. For congenital stenosis and occlusion of veins, the symptoms can be significantly improved by interventional stenting or surgical bypass; 2, poor arterial blood flow, often due to arteriosclerosis occlusion or arterial thrombosis, and the resulting poor blood flow, for arteriosclerosis occlusion, interventional balloon dilation, stent implantation, and if necessary, arterial bypass can be performed to improve poor arterial blood flow, for arterial thrombosis, interventional under In the case of arterial thrombosis, interventional embolization and surgical extraction can be used to restore the poor blood flow in the arteries.