The legendary "seven-hole exquisite heart" is also a rare seven-hole heart. In fact, normal people have no "mind's eye" in their hearts. If you have a "mind" in your heart, you are really sick, heart disease. A normal heart has an atrial septum and a ventricular septum, which divide the heart into four chambers: the left atrium and the right ventricle. Under normal circumstances, the atrial septum and ventricular septum are intact, and the blood in the left and right atria is different from each other; Blood flows smoothly through the four valves of the heart, which is unidirectional, that is, it cannot flow backwards; The contraction between atria and ventricles, left and right atria and ventricles is very coordinated to maintain normal heart function. If the heart has a "mind's eye", such as atrial septal defect and ventricular septal defect, it may lead to decreased cardiac function or heart failure, and in severe cases may lead to sudden death. Among patients with congenital heart disease, patients with heart cavity account for 60%-70%, including atrial septal defect and ventricular septal defect.