Interventional treatment is the third new medical method after medical and surgical treatment. It mainly uses catheters and puncture needles for examination and treatment of diseases. Advantages: No surgery, safety, high efficacy, less trauma, less side effects and shorter hospital stay. Diseases suitable for interventional treatment include 1, tumors: malignant tumors (such as liver cancer, lung cancer, etc.); benign tumors (hepatic hemangioma, uterine fibroids, etc.). 2, hemorrhagic lesions: hemoptysis, gastrointestinal bleeding, postpartum hemorrhage, traumatic bleeding, rhinorrhea, vascular malformation, aneurysm, cirrhotic portal hypertension, etc. 3.ischemic diseases: stenosis of blood vessels in various parts, interventional treatment of diabetic foot, arterial and venous thrombosis (thrombolytic treatment of acute cerebral infarction) 4.Luminal stenosis: esophageal, intestinal and biliary stenosis. 5.Cervical and lumbar intervertebral disc herniation. 6.Fallopian tube obstruction, ectopic pregnancy. 7.Cysts and abscesses. 8.Angiography of various parts.