There is embryo bud and yolk sac but no fetal heart

Some pregnant mothers go to the hospital for an ultrasound and may have some doubts. The ultrasound data may show that only the gestational sac is seen, but no fetal bud, fetal heartbeat, or fetal heartbeat is seen. What is going on? Regarding this type of question, some pregnant mothers may have this doubt: What is the situation when there is a yolk sac, a fetal bud, a fetal heartbeat, but no fetal heartbeat? What is the difference between the gestational sac and the yolk sac? What is fetal heartbeat? Below we will explain these problems one by one.

In fact, the fetus in the pregnant mother's body has a long process of development from the combination of sperm and egg. The first two weeks are called fertilized egg, and then the fetal organs will gradually form. Before the eighth week of pregnancy, it is called embryonic bud and fetal heartbeat. So what is the situation when there is yolk sac, embryonic bud and fetal heartbeat but no fetal heartbeat?

1. Pregnant mothers need to do color ultrasound examination in the early stages of pregnancy. The focus of this color ultrasound examination is to observe whether there is a gestational sac and yolk sac in the pregnant mother's uterus, whether the structure is normal, whether there is a test tube embryo in the pregnancy, whether the test tube embryo is alive or dead, and whether the growth and development of the test tube embryo is consistent with the time of the pregnant mother's menopause, whether there are any abnormalities in the shape of the test tube embryo, and to further understand the process of embryonic development. A four-dimensional color ultrasound can be done for diagnosis.

2. The yolk sac we usually talk about is actually a small round sac-like structure that appears around the embryo. It is very small, with a diameter of only three to eight millimeters. When the mother is five weeks pregnant, the yolk sac will be relatively clear. After ten weeks of pregnancy, it will disappear. The yolk sac is firmly attached to the test tube embryo. Its existence and size can predict the threatened miscarriage of the test tube embryo to a certain extent.

3. The presence of a yolk sac can confirm the existence of a test tube embryo. If no fetal heartbeat is detected during early pregnancy, but if the yolk sac is clearly visible and the size is relatively normal, then it can be understood that the test tube embryo is actually of relatively high quality. If the yolk sac is larger than ten mm, it indicates that the test tube embryo is poor. Only when there is a fetal bud, fetal heartbeat, and fetal heartbeat can it be diagnosed as a normal pregnancy.