A congenital heart defect (CHD) is a heart condition present at birth that affects the structure and function of the heart. These defects can involve the heart walls, valves, or blood vessels, leading to issues with blood flow. CHDs can vary in severity, with some requiring immediate medical attention while others may not cause noticeable symptoms. The exact cause of congenital heart defects is often unknown, but they can result from genetic factors, environmental influences, or a combination of both. Early diagnosis and treatment are crucial for managing symptoms and improving the quality of life for those affected by CHD.