Advantages of balloon dilatation include less invasiveness and clarity; disadvantages may cause continued vasoconstriction of blood vessels and bleeding may occur. It is recommended to consult the doctor in detail and choose the treatment under the doctor’s guidance. Balloon dilatation, at present, is mainly used for the treatment of vascular obstruction and heart valve stenosis, such as coronary artery obstruction and mitral valve stenosis. Currently, cardiac balloon dilatation is performed with more advanced equipment and higher clarity, and the procedure has become safer. Cardiac balloon dilatation means that when a patient’s hepatic arteries are narrowed or blocked, a special air bag can be used and implanted into the patient’s blood vessel wall through a guide wire to dilate the blood vessels and promote blood flow. The biggest disadvantage of cardiac balloon dilatation is that it may cause the blood vessels to continue to constrict, because when the patient’s coronary artery stenosis and blockage symptoms gradually deepen, the cardiac balloon’s support for the blood vessels will easily be insufficient, and it may also lead to the original stenosis and blockage degree to become more serious. It is recommended to follow the medical advice and choose the treatment under the guidance of the doctor.