Thigh pain during menstruation can be improved by massage, bed rest and appropriate physical exercise. Thigh pain during menstruation belongs to menstrual syndrome, because the body metabolic rate changes due to changes in the level of hormones during menstruation, resulting in the accumulation of lactic acid in the body to speed up, thus causing leg pain. This is a normal physiological phenomenon and does not require drug treatment. You can usually promote blood circulation in the legs through local massage, which can effectively promote the metabolism of lactic acid and thus improve the symptoms of sore thighs. If you are prone to leg pain during menstruation, you can improve it by resting in bed. You can also prevent leg pain during menstruation by increasing physical exercise during non-menstrual periods.