How does a girl's period relieve her pain?

Most girls will show abdominal pain during menstruation. Dysmenorrhea is divided into primary dysmenorrhea and secondary dysmenorrhea. Most cases are primary dysmenorrhea, which is caused by increased prostaglandin secretion during menstruation, accompanied by changes in some positions of the uterus, resulting in blocked blood flow. Abdominal pain during menstruation, as well as endometriosis, this is progressive dysmenorrhea, the whole menstrual period is painful. General dysmenorrhea can be oral painkillers, such as Fenbid, can also be oral non-steroidal anti-inflammatory drugs, such as indomethacin to symptomatic treatment. Usually can use hot water bag hot compress lower abdomen or warm palace paste lower abdomen to relieve dysmenorrhea. Menstruation time also do not eat cold things, can be appropriate activities, this can also alleviate.