Fluid accumulation around the gestational sac, if treated with aggressive fetal preservation, usually disappears in about half a month, but there may be some variation in specifics. The presence of fluid around the gestational sac suggests the possibility of preterm miscarriage. The formation of fluid is mostly due to bleeding from ruptured capillaries around the gestational sac, which is a collection of blood in the uterine cavity. There are many causes of fluid accumulation, the common ones being maternal exertion, strenuous exercise and excessive sexual tension. In addition, it is also related to infection, uterine malformation, embryonic dysplasia and other factors. If the fluid accumulation increases further, it may lead to inevitable miscarriage and embryonic abortion. In case of fluid accumulation around the gestational sac, it is important to take proper rest and prohibit sexual intercourse. Patients with low progesterone can use progesterone to preserve the pregnancy. If after treatment, the fluid accumulation is significantly reduced or even disappears and the embryo continues to develop, the pregnancy can continue.