Embolization is a kind of interventional therapy, in which embolic agents (such as balloons, spring coils, etc.) are transported to the lesion site through a catheter to achieve a therapeutic effect, and it can be used to treat bleeding disorders, tumors, and so on. 1. Hemorrhagic diseases: For hemorrhagic diseases caused by vascular problems, embolic agents can be transported to the diseased part of the blood vessels through the catheter to make the blood vessels occluded, so as to achieve the purpose of controlling bleeding. 2. Tumor: Embolization can also be used to treat tumors by delivering the embolic agent through the catheter to the supplying blood vessels of the tumor, blocking the blood supply of the tumor, thus achieving the therapeutic purpose. Embolization is an interventional therapy that can be used to treat a wide range of diseases, and it is important to note that the appropriate treatment modality should be used after evaluation by a physician.