The irregular liquid dark area next to the gestational sac in the uterine cavity without germs can be treated with fetal preservation as prescribed by the doctor and rechecked on a regular basis. Early pregnancy ultrasonography suggests that irregular dark areas can be seen in the uterine cavity next to the gestational sac without germs, no germs may be due to the short time of fertilization of the egg or embryonic dysplasia and other reasons, when the progesterone or blood HCG (human chorionic gonadotropin) levels are low, we should pay attention to the doctor’s advice to take proper rest and give progesterone and other drugs to protect the fetus, and check up on time. Generally, after 1 week of active treatment, ultrasound and progesterone and HCG levels should be checked again. When the ultrasound suggests that the embryo is developing well, the pregnancy can be continued, and obstetric examination should be carried out on time. However, when the ultrasound examination still does not show any embryo buds, which suggests that the embryo is not well developed, and the HCG level does not rise or fall, the pregnancy should be terminated according to the doctor’s advice. When the ultrasound examination suggests irregular liquid dark area next to the gestational sac in the uterine cavity and no embryo buds, it needs to be actively handled under the guidance of the doctor.