Menstrual weakness is related to many factors, it may be caused by uterine congestion and endometrial shedding during menstruation. It may be caused by uterine congestion and shedding of the endometrium during menstruation, because the lumbosacral area will bleed during menstruation, which will stimulate the body to produce tugging pain, which is a normal physiological phenomenon. Endocrine disorders and poor lifestyle may also cause lumbar and leg pain, as well as prolonged psychological and physical stress, inattention to lifestyle habits, and prolonged sitting and standing may also lead to lumbar and leg pain. Dysmenorrhea can also be accompanied by back and leg pain. It may also be due to insufficient blood and qi, frailty, poor physical quality and lead to the weakness of the waist and legs, it is recommended to take timely medication, through the treatment can help to improve the disease.