The main nature of early diagnosis and prevention of precocious heart disease: Precocious heart disease is a cardiovascular malformation that is present in infants at birth. It is a common birth defect among newborns in China. Its incidence ranks first in the prevalence of genetic diseases (congenital malformations) in China. The annual cost of medical procedures for the treatment of congenital heart disease in China is up to 15 billion RMB. Due to factors such as the more serious condition of children with congenital heart disease, the difficulty and high cost of treatment, and the impact of the disease on the health of the children, early diagnosis and scientific prevention and treatment of congenital heart disease are particularly important. The complex heart malformation and large number of left-to-right shunt septal defects in congenital heart disease are prone to secondary damage of respiratory, circulatory and neurological structures and functions, and even critical symptoms such as heart failure and hypoxemia, and the mortality rate of conservative medical treatment is relatively high. Congenital factors include chromosomal abnormalities and genetic mutations, while acquired factors include preconception or early pregnancy radiation, infection with rubella virus, syphilis spirochetes, estrogen, progesterone, amphetamines, anti-tumor drugs, excessive alcohol consumption by pregnant women, and diabetes mellitus. In recent years, with the aggravation of environmental pollution, the mutation of pathogenic microorganisms, poor personal hygiene and dietary habits, and the engagement in highly polluting occupations have also become precipitating factors for precocious heart disease. The onset of precardiac disease is mainly in the preconception and early pregnancy of women. Preconception mainly refers to the presence of genetic defects in the chromosomes of the parents, or genetic breakthrough changes during cell division, and genetic mutations can also be caused by severe acquired physical and chemical factors. Early pregnancy is a critical period for the generation, growth and development of the heart and blood vessels and all other organs and organs of the baby embryo. If you are infected with herpes simplex virus, rubella virus, syphilis spirochetes, receive X-ray examination treatment, work in highly polluting occupations such as painting, shoe making, paint printing, etc. during the second to eighth week of pregnancy, it may lead to malformation of the cardiovascular system and other organs of the embryo in the early stage, syphilis spirochetes, Rubella virus, herpes simplex virus infection can induce heart wall septal defect, ventricular septal defect, ductus arteriosus, aorta, pulmonary artery stenosis, such as early pregnancy infection with rubella virus, the incidence of fetal cardiovascular malformations up to 60%, of which aortic ductus arteriosus, pulmonary artery stenosis, atrial septal defect, ventricular septal defect, aortic valve anomaly is common. Possible ways to prevent precardiac disease; prevent inbreeding marriages, women of childbearing age prohibit alcohol and smoking before pregnancy, participate in premarital health care before pregnancy, preconception health care, physical examination in the four viruses, syphilis spirochete antibody test, do not take progesterone, estrogen, amphetamines, 6 months before to after pregnancy preferably not engaged in painting, shoe manufacturing, plastic primary processing, heat treatment work, as far as possible to avoid radiation therapy and examination, so that This will greatly reduce the predisposing factors of precocious heart disease, reduce and minimize the occurrence of precocious heart disease. Early diagnosis of precocious heart disease: Since the occurrence of precocious heart disease is in the period of embryonic formation, it is difficult to be detected by physical examination during this period, after 4 months of gestation, the fetal heart vessels have been formed and have normal fetal heart function, at this time, obvious heart malformations can be detected by high quality color ultrasound, and newborns and young children after birth can be detected and diagnosed early by heart auscultation combined with color ultrasound, abnormal development of young children and clinical symptoms and signs. The early detection and definite diagnosis of congenital diseases can be made through the combination of color ultrasound, developmental abnormalities of young children and clinical symptoms. Treatment of congenital diseases: The treatment plan is mainly determined by the condition and the size of the cardiovascular malformation. The majority of children with small septal and ventricular heart defects can heal themselves within 3 years of age. A defect between 0.5 cm and 1.0 cm is considered a moderate defect, and 30% to 50% of children with moderate defects can heal spontaneously within 3 years of age. Large defects are defined as those with a defect of more than 1.0 cm, and those with large defects should be diagnosed and treated at the heart surgery department of a large general hospital as soon as possible. In China, the success rate of surgical treatment of precordial disease has reached the world advanced level.