According to recent medical surveys, about one in every hundred babies has congenital heart disease. What are the clinical manifestations of congenital heart disease? Here are the clinical manifestations of congenital heart disease. The common congenital heart disease is divided into two types: non-cyanotic and cyanotic. A. Non-cyanotic congenital heart disease includes arteriovenous ductus arteriosus, ventricular septal defect, ventricular septal defect and so on, the children usually have no cyanotic performance, so it is called “non-cyanotic congenital heart disease”; but the children can have cyanosis when they cry vigorously or suffer from pneumonia, heart failure and late stage of heart disease, so it is also called “latent cyanotic congenital heart disease”. 1, the symptoms of children with unclosed ductus arteriosus are related to the size of the ductus and the thickness of the unclosed interpulmonary artery and aorta and the size of the blood fraction flow. If the diameter of the catheter is not large, it may not produce any symptoms, and only occasionally a heart murmur is found during physical examination. If the diameter of the catheter is large, the child is prone to repeated colds or pulmonary infections, usually easily fatigued, sweating, slow growth and pale and thin; at the same time, the heart may be enlarged, the left chest is inflated, murmurs can be heard and tremors can be felt between the left edge of the left sternum 1 to 2 ribs. The early appearance and severity of symptoms in children with ventricular septal defect depend on the size of the left and right ventricular septal defects. Small defects can be asymptomatic; medium-sized ones often have easy fatigue, panic during exercise and respiratory infections; large defects hinder the child’s development and have symptoms such as weight gain, shortness of breath and excessive sweating, and children are often prone to pneumonia and heart failure (increased heart rate, shortness of breath, liver enlargement, etc.). In typical cases, a loud and rough systolic murmur can be heard between 3 and 4 ribs at the lower border of the sternum, and tremor can be felt. 3. Children with atrial septal defect have fewer symptoms, and many of them are not detected until they enter nursery or school physical examination. However, children with large defects and large blood flow may have obvious symptoms, such as shortness of breath (especially after crying and breastfeeding), dysplasia, thinness, thin and pale skin, small bones, and inactivity. Second, cyanotic congenital heart disease is more common in tetralogy of Fallot. The prominent manifestation of the child is the early appearance of generalized cyanosis, which is obvious in the lips, fingers, toes, earlobes and oral mucosa. If the cyanosis persists for more than 6 months, the ends of the fingers and toes may become thickened and widened (called pestle-like toes), and shortness of breath may become difficult. In severe cases, there may be hypoxic episodes, manifested by sudden acceleration and deepening of breathing and aggravation of cyanosis, and if it lasts for a long time, it may lead to confusion, seizure, or even death. Older children have shortness of breath when walking or moving, and often crouch for a moment to stand up and walk again. However, the chest is not elevated and the heart is not enlarged. There may be headache, irritability, anorexia and other symptoms, and there may be vascular embolism, such as hemoptysis and stroke, etc. If these manifestations occur, they mostly indicate that the disease is advanced.