Ventricular septal defect is a type of congenital heart disease. Currently, early surgical treatment is recommended for this disease, as it can lead to the formation of blood clots and easily cause pulmonary embolism. If pulmonary embolism occurs, this disease is very dangerous and can significantly impact human life. Therefore, early surgical intervention is the main approach. During this period, it is crucial to actively control the patient's blood pressure, heart rate, and pulse changes. At the same time, active and early surgical intervention should be carried out. If the defect area is large, it can also lead to heart failure, especially if murmurs are present in the precordial region, and it can easily cause palpitations, chest tightness, and breathing difficulties.