Congenital heart disease primarily refers to the abnormal development of the heart and blood vessels during the fetal period, leading to cardiovascular malformations. It is the most common type of heart disease in children, with an incidence rate of about 6-8 per 1,000 live births. Generally, congenital heart disease refers to malformations during the development of the fetal heart. The exact causes of this condition are still not completely understood. However, actively preventing viral infectious diseases in the early stages of pregnancy and avoiding certain high-risk factors associated with the disease play a significant role in preventing congenital heart disease in children. It should be noted that congenital heart disease represents malformations in the development of the heart and is not a form of heart cancer, hence there is no terminology that describes it as such.