The level of progesterone is very important for women’s health. Low levels of progesterone can cause a range of adverse symptoms, such as miscarriage and fetal arrest. For pregnant women, progesterone helps to maintain the stability of the intrauterine environment, which can prevent uterine contractions and promote the healthy development of the embryo. If the level of progesterone is low, the development of the embryo will be unstable, usually accompanied by the emergence of black-brown secretions, and the emergence of a prior miscarriage, which needs to be preserved for treatment, and if there is no timely intervention, it may result in adverse consequences, such as fetal arrest. Therefore, if you have low progesterone, you must go to the hospital in time, early diagnosis, early treatment, to promote the healthy development of the fetus.