Leaky fetus is medically referred to as preterm miscarriage, which usually occurs in the early stages of pregnancy, i.e., within the third month of pregnancy. In early pregnancy, due to the unstable development of the embryo, miscarriage is prone to occur. If there are uncomfortable symptoms such as backache, abdominal pain and vaginal bleeding, it is considered that it may be preeclampsia, and it is necessary to go to the hospital in time for active diagnosis and treatment. First of all, ultrasound examination will be conducted to clarify the location of the gestational sac and its development, and other related examinations, such as blood progesterone measurement, chorionic gonadotropin, thyroid function and so on, will also be conducted. Through the above examination, if it is determined to be preeclampsia, it should be given timely treatment to protect the fetus, in the early stage of pregnancy, pay attention to rest, not to exert oneself, prohibit intercourse, pay attention to dietary adjustments, keep the bowels open, prevent constipation. After the development of the embryo is stabilized, it is recommended to build a pregnancy test booklet and have regular obstetric checkups. If there are any other problems during pregnancy, it is recommended to consult a professional doctor for guidance.