What is the reason for menstrual distension and abdominal pain

Menstruation chest distension and abdominal pain are mainly divided into physiological distension pain, viral distension pain. 1, physiological distension pain: a week before menstruation, progesterone secretion in the human body will continue to increase, causing mammary duct expansion, thus causing chest distension pain and other manifestations. Such phenomena generally disappear after menstruation, is a normal physiological phenomenon. 2, viral distension pain: If menstruation has arrived, chest and abdominal pain has not been relieved, touch the breast has a lump, it is likely to suffer from breast hyperplasia. Breast hyperplasia is generally caused by endocrine disorders, so it is necessary to seek medical attention in a timely manner, conduct detailed examinations, clarify the cause, and actively treat.