It is normal for 17 year old adolescent girls to menstruate twice a month, but if it lasts longer, it may be abnormal.
After menarche, the hormone secretion function of hypothalamus, pituitary gland and ovary axis is not very mature, and it takes 2 to 3 years to gradually establish regular menstrual cycle. Therefore, irregular menstruation and twice-per-month menstruation may occur during the period, which is normal in most cases, and there is no need for special treatment, and it can be recovered naturally in the later stage of the disease.
If there is a long period of two periods per month, accompanied by abdominal pain, menstrual bleeding and other symptoms, it may be caused by uterine fibroids, endometrial polyps and other diseases, which is not normal.
17-year-old adolescent menstruation twice a month, it is recommended to do a good job of observation, if the duration is long, there are other symptoms of discomfort, you must promptly go to the hospital for examination, and follow the doctor’s instructions for treatment.