The normal range of fetal left ventricular punctate echoes is less than 0.4 centimeters, and if the punctate echoes do not gradually increase in size and become more numerous with the increase of gestational weeks, all of them are normal manifestations. Fetal heart left ventricular punctate echoes in addition to normal physiological conditions may also be calcification foci, fetal chromosomal abnormalities. 1. Physiological manifestations: fetal left ventricular punctate echoes is usually a normal manifestation of ultrasound, with the further development of the fetus will generally disappear on their own, most of them are normal, belonging to the normal physiological phenomenon of the process of fetal development. 2. Calcified foci: mainly manifested as calcification of the papillary muscle of the fetal heart, which may be manifested as punctate echogenic changes of the left ventricle under ultrasound, and generally will not affect fetal growth and development. 3. Chromosomal abnormality: if the fetal chromosomal abnormality caused by Down’s syndrome, it will cause fetal cardiac development malformation, ultrasound examination of the left ventricle punctate echogenicity, you need to do further amniocentesis and other definitive diagnosis, if chromosomal abnormality is detected, it is necessary to terminate the pregnancy in a timely manner. Therefore, if the examination found fetal left ventricular punctate echoes need to do regular ultrasound examination.