What is the probability of ventricular septal defect 3 mm self-healing?

If the patient is younger, there is a ventricular septal defect of 3 mm, and the ventricular septal defect decreases with growth, the probability of self-healing is greater. After the ventricular septal defect occurs, it will gradually close with growth and development until it self-cures. If the patient is older and has grown up, there are often uncomfortable symptoms such as shortness of breath and chest tightness in daily life. At this time, it is generally impossible to close.

The adult body gradually stops growing, and ventricular septal defects do not heal with age.