A gestational empty sac is usually an abnormal embryonic development and is not uncommon in clinical practice. Empty sac refers to the absence of fetal buds and fetal heart at 60 days of pregnancy. The causes of empty sacs in pregnancy are as follows: First of all, women with empty sacs will usually have a spontaneous abortion, and the chances of this kind of women conceiving are very high, the fetus of empty sacs in pregnancy can not develop normally, we should do a good job of timely contraception, to prevent the pregnant woman from being harmed, in general, empty sacs in pregnancy is the mother’s body has a problem, but it is not necessarily a lack of something in the mother’s body, but if you want to have a baby, you have to take care of your own body. The first thing you need to do is to pay attention to the nutritional health of your diet, and eat reasonably. Secondly, it may be that the quality of the sperm is not good, or environmental factors affect the fertilization and development of the embryo, so that the gestational sac can not develop normally to grow out of the fetal buds and fetal heart. Therefore, men should pay attention to their diet, do not smoke and do not drink alcohol is very important, the diet should be light and avoid spicy, eat more nutritious food, sleep should also be regular. Furthermore, maternal chromosomal abnormalities, the main components of chromosomes are proteins and DNA, it is likely that the protein deficiency or DNA abnormalities, this need to go to the hospital in time to check the diagnosis, timely treatment. Pregnant empty sacs and normal conception have the same pregnancy reaction, hcg and progesterone value during pregnancy is normal, pregnancy to do regular checkups do not take it lightly.