Many pregnant women are diagnosed with “low progesterone”, followed by either oral progesterone or progesterone “to protect the fetus”, such medical measures seem to sound reasonable, low well, prone to miscarriage, so we need to supplement, pregnant women heard, baby is important If the baby is in danger, then let’s take medicine and injections. Is such a measure in fact justified? The results of a large global sample of studies suggest that there is no evidence to support progestin preservation treatment for such cases, early pregnancy miscarriage, mostly related to the genetics of the embryo, most miscarriages occur because the child can not continue to grow, is to be eliminated, the incidence of such a population is about 7.5%, such cases of low progesterone is also a result, not It is not beneficial to supplement progesterone to preserve the fetus as a cause of miscarriage, and the current findings only support progesterone treatment for pregnant women with a history of more than 3 miscarriages. If there is vaginal bleeding during early pregnancy, beta hCG and progesterone testing is helpful to help doctors to make diagnosis and differential diagnosis. Normally, within 4 to 8 weeks after menopause, if beta hCG is checked once every 2 to 3 days, it will multiply, and if it does not multiply well or shows a decreasing trend, it indicates a poor prognosis, possibly miscarriage or ectopic pregnancy. For progesterone testing, a single result can help determine the prognosis, usually in the case of a good intrauterine pregnancy, while a progesterone result <5ng/ml is indicative of a poor pregnancy outcome, between which means that the outcome is unknown and needs to be further understood, therefore such a progesterone result cannot be used as an indication for progestational intervention, but for the clinician, it is useful to determine the prognosis or differential diagnosis. However, it can be useful for clinicians to determine the prognosis or differential diagnosis.