For women who are not sexually active, if you experience pain in your stomach and swelling in your breasts every time you have your period, consider it a precursor to your period. The uterus and pelvis will be obviously congested when menstruation is approaching, which may lead to abdominal pain, mainly abdominal distension or falling pain, before menstruation, the body’s estrogen and progesterone will reach a higher level, will also be reflexive stimulation leading to breast swelling and pain phenomenon. After menstruation, the chest pain will naturally disappear, if it does not disappear, it is considered to be caused by breast hyperplasia pain, for women who have had sex with the phenomenon of pain in the stomach and chest pain, may be due to pelvic inflammatory disease combined with breast hyperplasia, but also may be caused by the performance of the pregnancy.