Ventricular septal defects (ventricular defects for short) have two options if they need to be treated. One is surgery and the other is interventional occlusion. Surgical repair of ventricular defects has a history of more than 50 years in China, and the technology is very mature and safe, and the cost of surgery is about 30,000 to 40,000 RMB depending on the condition and age. Interventional occlusion of ventricular defect is a clinical treatment method used in the last decade or so. Compared with surgery, this method has the advantages of less injury, no chest opening, less pain, faster postoperative recovery and shorter hospital stay. However, this technique requires that the location, size, and age of the child meet the requirements before it can be performed. The cost is 30,000 to 40,000 RMB.