How long does menstruation come a normal time

A woman's menstrual cycle is generally about 28 days, and may be advanced or delayed by a week. If the menstrual cycle shows abnormalities, such as maintenance time or delay time, it may indicate that the female reproductive system has organic lesions or uterine bleeding. It is recommended to go to the hospital for examination in time, such as routine gynecological examination, and pelvic color Doppler ultrasound. Rule out uterine fibroids or ovarian cysts and other diseases first, and then consider dysfunctional uterine bleeding. If the above diseases are caused, timely treatment should be taken. Blood coagulation or liver abnormalities may also cause abnormal menstrual cycles, so specific causes should be identified and targeted treatment should be taken.