During menstruation, it is not advisable to take medicines that activate blood circulation and remove blood stasis (promoting blood circulation and eliminating blood stasis in the body). Drugs for activating blood circulation and removing blood stasis have the effects of moving qi and removing blood stasis, promoting menstruation and activating blood circulation, and are suitable for the symptoms of blood stasis and obstruction, which are manifested as pain in the body, pain as if it were a pinprick, pain in a fixed location, often aggravated at night, sallow face, blue lips and fingernails, purple spots on the skin or exposure of blue veins, menstrual disorders in women, and dislocation of the menstrual period (excessive menstruation or spotting of menstruation), and so on. Women with symptoms of blood stasis can take medicines to activate blood circulation and eliminate blood stasis before menstruation, which can have certain improvement effects on the symptoms of blood stasis as well as irregular menstruation, but it is not recommended to take them during menstruation, as prolonged menstruation, heavy menstruation, and leakage of menstruation may occur. After the discomfort occurs, you should consult a doctor in time and choose the medication under the guidance of physician’s diagnosis, not self-medication to avoid delaying the condition.