Generally, intramuscular injection of progesterone for pregnant women can be used for the treatment of preeclampsia, and it is recommended to be injected for about 5-7 days under normal circumstances. Pregnant women with preeclampsia due to insufficient function of the corpus luteum can be injected intramuscularly with progesterone to achieve the effect of preserving the fetus. Under normal circumstances, the injection of progesterone for 5-7 days can improve the corresponding symptoms. If the symptoms of preeclampsia do not improve significantly after 5-7 days of injection, it suggests that there may be other causes of preeclampsia and further examination should be conducted. Progesterone is a kind of progesterone, but prolonged use may cause nausea, vomiting, fatigue and other adverse symptoms in pregnant women, the use of medication must be reasonable under the guidance of a doctor. If the phenomenon of preeclampsia occurs, it is necessary to consult a doctor in a timely manner, under the guidance of the doctor to carry out reasonable treatment.