Ventricular Septal Defect (VSD) is a congenital heart condition characterized by an abnormal opening in the wall (septum) that separates the heart's lower chambers, known as the ventricles. This opening allows blood to flow directly from the left ventricle to the right ventricle, disrupting the normal circulation of oxygenated and deoxygenated blood. VSD is one of the most common congenital heart defects, varying in size and severity. Small VSDs may close on their own, while larger ones may require medical intervention. Symptoms can range from mild to severe, including difficulty feeding, poor weight gain, and respiratory issues. Timely diagnosis and appropriate management, which may involve medications or surgical procedures, play a crucial role in addressing VSD and promoting optimal heart function. Regular monitoring and follow-up care are essential for individuals with VSD to ensure proper cardiac health throughout their lives.