If the patient has clinical symptoms suitable for the use of Blood Mansions and Stasis Pill, it can be taken 3 days after menstruation is clean. The main function of Blood Mansions and Blood Stasis Pills is to activate blood circulation, resolve blood stasis, regulate Qi and relieve pain. If you start using them just after your menstrual period, it can cause patients to experience re-bleeding. Patients should start taking them 3 days after their menstrual period is clean, and their medication needs to be stopped for 10-14 days. Because the menstrual cycle of most women is about 30 days, the patient enters the mid-luteal phase after 3 days of clean menstruation and 10-14 days of medication, and the patient will have about 7 more days to get her period. If the patient continues to use the medicine, it is easy to cause the patient to have heavy menstruation or prolonged menstruation. If the patient has low menstruation or delayed menstruation due to internal blockage of blood, the medicine can be continued until the menstruation comes.