After taking progesterone tablets for 3 months to regulate menstruation, you can stop taking the medicine as prescribed by your doctor and observe your menstruation. Progesterone tablet is a progestin preparation, after taking it, it can make the proliferative endothelium undergo secretory changes, after stopping the drug, the endothelium loses the support of progesterone and retreat bleeding occurs, i.e., menstruation occurs. For women with menstrual disorders, the medication can be stopped after 3 months of treatment to observe whether menstruation can occur as scheduled. If menstruation is still irregular, it is necessary to continue taking the drug if necessary. When regulating menstruation, women should also pay attention to maintaining a regular routine, do not stay up late, pay attention to rest, appropriate exercise, and maintain a happy mood. For women with irregular menstruation, it is recommended to go to a regular hospital, complete ultrasound, sex hormones and other related examinations, to clarify the cause of the disease under the guidance of the doctor active treatment. Pay attention to the use of progesterone tablets, need to follow the doctor’s instructions.