16-year-old menstrual stomachache what causes

16-year-old girls in menstruation when abdominal pain is considered dysmenorrhea, may be because during menstruation eat cold food, such as iced fruit, cold drinks, etc. lead to uterine spasm, may also drink strong tea, coffee and other stimulating drinks, there may be endocrine disorders during menstruation, prostaglandin secretion caused by dysmenorrhea.