Women with low progesterone who are not pregnant may show abnormal menstruation, weight gain, infertility, etc. Pregnant women with low progesterone will show easy abortion, etc. 1. Abnormal menstruation: patients will experience menstrual disorders, delayed menstruation, change in menstrual flow, etc. This is mainly due to insufficient levels of progesterone in the body, and the endometrial stripping of the uterus is affected. 2. Weight gain: in terms of metabolism, progesterone can promote the excretion of water and sodium, leading to water and sodium retention in the body, swelling and edema, causing women to develop hormonal obesity and endocrine obesity. 3. Infertility: low progesterone can lead to poor follicular development, making it difficult for women to get pregnant. 4. Easy abortion: progesterone plays an important role in maintaining the stability of the uterine lining in the early stages of pregnancy, and when progesterone is insufficient, abortion is easy to occur. It is recommended to go to the hospital in time, under the guidance of the doctor to carry out relevant examinations, according to the specific results of the examination, to take targeted treatment.