The reason why women have chest pain a few days before menstruation: 1, most of them are due to the increase of estrogen and progesterone level in women’s body at this time, both hormones can stimulate the breast, so that the ducts of the breast and the growth and development of the mammary glands, so this phenomenon will occur. 2, it is also possible that women suffer from breast enlargement, breast nodules, which will also lead to chest pain. 3, when women appear to have The situation of irritability will also cause the liver qi stagnation, resulting in chest swelling and pain. Therefore, when women have chest pain, to keep the mood calm, if it can be relieved after the menstruation, you can temporarily observe. If the pain is not relieved after the menstruation, you need to go to the hospital for an ultrasound examination of the breast in time to avoid delaying the diagnosis and treatment of the disease, thus causing harm to women’s health.