Fetal buds and fetal heart failure, some pregnant women may not have any symptoms, only ultrasound found sterilization phenomenon, there are some pregnant women early pregnancy reaction disappeared, or accompanied by vaginal bleeding, due to the individual constitution is different, only according to the symptoms may not be able to accurately determine whether the fetal heart fetal buds have been sterilized, it is best to go to the hospital for ultrasound to determine clearly. 1, the disappearance of the early pregnancy reaction: fetal buds and fetal heart failure, some pregnant women in early pregnancy, nausea, vomiting, anorexia, breast swelling and pain disappeared. Vomiting, anorexia, breast swelling and pain and other phenomena disappeared, but because some pregnant women do not appear obvious early pregnancy reaction, so only based on the disappearance of early pregnancy reaction, can not clearly determine whether the fetal heart buds have been decontaminated; 2, lower abdominal pain or vaginal bleeding: part of the pregnant women embryo stops developing, the gestational sac will be dislodged, the uterine contraction of pain in the lower abdomen and vaginal bleeding symptoms; 3, the size of the abdomen does not correspond to the week of pregnancy: with the increase in the week of pregnancy, the lower abdomen will be dislodged. When the embryo stops developing, the uterus will also stop growing, so the size of the lower abdomen will remain unchanged or will be smaller than the actual pregnancy week. It is recommended to check again in 7-10 days, combined with the rise of blood HCG value, can more accurately understand the embryo development status. It is recommended to take good care of yourself during pregnancy, take regular pregnancy checkups, supplement your nutrition, regulate your mood, and pay attention to rest, so you can avoid fetal arrest to a large extent.