Fetal buds have the potential to look like small seahorses. Fetal buds are embryos that can be visualized on ultrasound ultrasound up to 8 weeks of pregnancy. Usually the morphology on ultrasound resembles that of a small seahorse, and slowly with the appearance of the buds, there is also a regular heart tube beat. Normal in 6 to 7 weeks of pregnancy, you can see obvious fetal heart tube pulsation and fetal buds, pay attention to do a good job of rechecking; if more than 7 weeks, and then recheck for a week, and have not seen the fetal heart fetal buds, we should consider the possibility of fetal cessation of development, we should go to the hospital in time to do the ultrasound examination, diagnosis and then need to terminate the pregnancy, if necessary. The fetus is very unstable in early pregnancy, should pay attention to take folic acid to prevent fetal cardiovascular malformation, should also pay attention to rest, avoid intercourse and strenuous exercise.