Congenital heart diseases represent a diverse group of structural abnormalities present from birth, impacting the heart's functionality and circulation. These conditions, ranging from atrial septal defects to more complex anomalies like hypoplastic left heart syndrome, often require early intervention. Advances in diagnostic tools, such as fetal echocardiography and genetic screening, have enabled earlier detection and better planning of treatment strategies. Surgical innovations, including minimally invasive techniques and hybrid procedures, continue to improve survival rates. Additionally, the long-term management of congenital heart diseases focuses on preventing complications, ensuring that patients lead healthier, more active lives through comprehensive and personalized care.