Embolism is a clinical condition in which the teeth grow in the shape of an embolism due to certain diseases. Embolism is one of the clinical manifestations of pediatric dyschromia. Incontinentiapigmenti is also known as incontinentia pigmentosa, Bloch-Sulzberger syndrome, Bloch-Siemens syndrome, dermal degenerative melanosis (melanosiscoriadegenerarativa). It is a rare complex genetic syndrome with characteristic skin changes that may be accompanied by ocular, skeletal, and central nervous system malformations and abnormalities. With reference to the preventive methods of congenital diseases, preventive measures should be carried through from the preconception to the prenatal period: premarital physical examination plays an active role in the prevention of birth defects, and the magnitude of the role depends on the examination items and contents, which mainly include serological examination (e.g., Hepatitis B Virus, Syphilis Spirochete, HIV), reproductive system examination (e.g., screening for cervical inflammation), general physical examination (e.g., blood pressure, electrocardiogram), and inquiring about family history of the disease, personal past medical history, etc., and counseling for genetic diseases. Pregnant women should avoid harmful factors as much as possible, including staying away from smoke, alcohol, drugs, radiation, pesticides, noise, volatile harmful gases, and toxic and harmful heavy metals. Systematic screening for birth defects needs to be carried out in the course of prenatal care during pregnancy, including regular ultrasonography, serologic screening, etc., and chromosome examination if necessary. In the event of abnormal results, it is necessary to clarify whether the pregnancy should be terminated, the safety of the fetus in the womb, whether there are sequelae after birth, whether it is treatable, and what the prognosis is. Practical diagnostic and therapeutic measures are taken. The prenatal diagnostic techniques used are: 1, amniotic fluid cell culture and related biochemical tests (amniocentesis is preferred at 16-20 weeks of gestation); 2, maternal blood and amniotic fluid alpha-fetoprotein measurement; 3, ultrasonic imaging (can be applied at about 4 months of gestation); 4, X-ray examination (after 5 months of gestation), which is beneficial to the diagnosis of fetal skeletal deformities; 5, chorionic villus cell sex chromosome measurement (at 40-70 days of pregnancy), which predicts the sex of the fetus; 5, sex chromosome measurement (at 40-70 days of pregnancy), which predicts the sex of the fetus. Sex chromatin measurement of chorionic cells (at 40-70 days of conception), which predicts the sex of the fetus to aid in the diagnosis of X-linked genetic diseases; 6. Application of genetic linkage analysis; 7. Fetoscopy. Through the application of the above techniques, the birth of fetuses with serious genetic diseases and congenital malformations is prevented.