Fetal buds of 4mm without primitive fetal heartbeat are mainly considered to be related to the early examination time, the relatively poor quality of fertilized eggs or the cessation of embryonic development.
1. Early examination time: After pregnancy, the growth of fetal buds will occur, and with the passage of time, the primitive fetal heartbeat will appear. If the prenatal examination is conducted too early, there will be 4mm of fetal buds but no primitive fetal heartbeat, usually when the examination is conducted again after a period of time, the fetal heartbeat will be found.
2. Poor quality of fertilized egg: If the quality of fertilized egg is poor in pregnancy, it usually affects the development of the fetus easily, so it will produce the phenomenon of abnormal development of the fetus, which will produce the phenomenon of fetal buds of 4mm, but no primitive fetal heartbeat, and may cause the performance of preterm miscarriage at a later stage.
3. Stopped embryonic development: In the early stage of embryonic development, if there is a phenomenon of stopped embryonic development, it usually produces the appearance of fetal buds, but there is no primitive fetal heartbeat.
In the process of pregnancy, pay attention to regular prenatal checkups, if there are abnormalities, we should consult a doctor in time. Keep a good state of mind and strengthen your diet. In the early stages of pregnancy, you should rest as much as possible, and do not exercise strenuously or overwork.