Every time menstruation comes what reason is abdominal ache

Every menstrual stomachache is the performance of dysmenorrhea, can be caused by pelvic congestion, uterine contraction, endometrial detachment and other abdominal pain, but also because of qi stagnation, blood stasis, mental stress and other inducing factors caused by abdominal pain. During menstruation, rest more, pay attention to keep warm.