An unseen germ usually means that the ultrasound shows only cystic echoes in the uterine cavity and no echoes of the germ in the gestational sac. Unseen germs can be normal, just that the germs have not yet developed; it can also be caused by the embryo development stops.
1. Undeveloped germ: Generally around 6~7 weeks of pregnancy, the developed germ can be seen by ultrasound. the lack of germ in ultrasound may be due to the early examination time, or because of the error in the calculation of gestational week due to the irregular menstrual cycle of the pregnant woman in the past, and the actual conception has not yet reached 6~7 weeks. These situations are normal, regular checkups can be.
2. Embryonic development stops: If the embryo development stops because of the embryo itself or the mother’s factors, the embryonic buds will not be able to develop. In this case, the embryonic development is often irreversible, and artificial or medicinal abortion is needed to expel the embryo.
To summarize, when the ultrasound shows no embryo buds, you can combine the progesterone and hCG levels to make a comprehensive judgment, or check again in a week. Infections may occur if the embryo is retained for a long time, so it is recommended to consult a doctor in time to clarify the development of the embryo and take timely measures.