Since the development of interventional therapy, it has been widely used in many fields and has solved many clinical problems. What diseases can be treated by interventional therapy? In which cases should one visit the interventional department? As mentioned before, interventional therapy can be divided into endovascular interventional therapy and non-vascular interventional therapy, and now we will analyze these two aspects separately. I. Intravascular intervention 1. Intravascular embolization treatment for benign tumors, such as hepatic hemangioma and uterine fibroid; 2. Chemoembolization for malignant tumors, such as liver cancer, lung cancer, kidney cancer, and musculoskeletal tumors of extremities; 3. Interventional chemotherapy for patients who cannot be operated or embolized; 4. Interventional chemotherapy for malignant tumors after surgical resection; 5. Embolization treatment for malignant rhinorrhea, gastrointestinal bleeding, and arterial bleeding of extremities; 6. Embolization treatment for hemangioma and vascular malformation of brain, liver, kidney and other organs; 7. Embolization treatment for carotid cavernous sinus fistula; 8. Interventional treatment for arterial and venous stenosis and vascular occlusion; 9. Partial splenic embolization treatment for hypersplenism. Non-vascular interventional treatment 1. Balloon dilation or stent implantation for esophageal stenosis or obstruction; 2. Interventional treatment for obstructive jaundice caused by bile duct obstruction due to bile duct cancer and pancreatic cancer; 3. Interventional treatment for liver cancer, lung cancer, pancreatic cancer, prostate cancer and metastases, such as local drug injection, radiofrequency ablation, microwave coagulation therapy, argon helium knife therapy, 125I radioactive particle implantation, etc.; 4. Puncture and aspiration for liver cyst, kidney cyst, pancreatic cyst, liver abscess, etc.