If a woman is pregnant at an early stage, low progesterone is likely to cause miscarriage. This is because progesterone is the progesterone in a woman’s body, and progesterone in the early stage of pregnancy can play a role in stabilizing the fetus, which can reduce the excitability of the uterus and inhibit the uterine contraction, which is conducive to the embryo and the fetus to grow and develop in the uterus. Therefore, if progesterone is low, the sensitivity of the uterus will increase, and some women will experience clinical manifestations such as bleeding and stomach pain. In addition, if a woman is not pregnant, insufficient luteinizing hormone in the body will lead to irregular menstruation, which is mainly manifested as dribbling and unclean menstruation, that is, the menstruation is on the body for a very long time, and in some cases, it may take up to 10 days to be clean. Others show a shortening of the menstrual cycle, that is to say, menstruation may come once in 22-23 days, are all manifestations of insufficient progesterone secretion.