There is fluid next to the gestational sac, which is actually bleeding around the gestational sac in early pregnancy, indicating that the gestational sac is unstably planted in the uterus and somewhat stripped from the uterus. I. Common causes: 1. Luteinizing body insufficiency: Insufficient luteinizing body function in the pregnant woman itself will lead to a drop in progesterone, which will cause bleeding from the pregnancy sac when the progesterone is low; 2. Abnormal embryo quality: Abnormal embryo quality in the pregnant woman itself will lead to abnormal bleeding performance during the growth and development of the pregnancy sac. It is usually caused by poor quality of sperm or follicles, or even having abnormal thyroid function, as well as various viral infections. 2. Precautions: 1. Monitor the ultrasound dynamically to see if the extent of fluid accumulation continues to increase. If it continues to increase, it may lead to preterm miscarriage or may affect the development of the embryo. If the fluid does not continue to increase, most of the fluid can be absorbed slowly and will not have any significant effect on the pregnancy, so there is no need to be too nervous and worried. 2. Pay attention to rest in early pregnancy, perform regular obstetric examinations, and avoid strenuous exercise, heavy physical labor and sexual life as much as possible. In early pregnancy, because the embryo development is not stable, the stimulation of external forces causes bleeding around the gestational sac and triggers preterm miscarriage, so you must be properly active.