As the girls grow into girls, there will be physiological changes, generally to 13 will appear after the age of menstruation, how to determine the normal and abnormal menstruation for young girls need to know the problem:

1, the menstrual cycle. General woman’s menstrual cycle is 28-30 days, but it was 30 days to first period, it was even 40 years time periods. As long as there is regularity, which is roughly the same menstrual cycle the first time, belongs to the normal situation. In addition, the menstrual easily affected by many factors, so after 3-5 days in advance or wrong, but also a normal phenomenon.

If this menstrual cycle is 20 days, the next 40 days, separated by the number of days a lot, and often appears to be the case, and some even menstruation to 1-2 days, over 10 days again 1-2 days, lost periodicity, which are not normal, called irregular menstruation. It should be noted that the girls menarche, due to newly developed ovarian functions is not perfect, it will be of functional disorders, irregular, this is not a pathological phenomenon, without fear and fearing that, over a year or two ovarian maturation, menstruation on the fate to normal.

2, menstrual period (also known as menstrual). Woman’s menstruation is about 3-5 days, 2-8-day not uncommon. The general law of passing through the first few days of menstruation, and the second, three-day increase, then gradually reduced until the blood clean up,. This is because the first day of the endometrial shedding has just begun, and the second three days, an increase in endometrial shedding, also increased the amount of bleeding, the uterus is stimulated to strengthen the contraction of a large amount of blood discharged reasons. Some people clean blood after a little over a day or two again, people wishing to “the blood back,” This is not the disease, but a normal phenomenon. However, some women’s menstrual period for up to 10 days, or even 20 days, not exactly dripping menstruation; some menstrual period was very short, only “flash” that is over. These two phenomena are not normal.

3, through the blood. How much women’s menstrual flow varies, the individual vary greatly, usually 20-10 ml, with an average of about 50. Usually 3-5 times a day for menstrual sanitary napkin or paper, even if it is normal.

If after blood too much to change a sanitary napkin or have soaked through the paper again soon, and even shun blood drip down the thigh, which is not normal. Menorrhagia may be psychological stress, environmental changes, malnutrition, and metabolic disorders caused by factors such as dysfunctional uterine bleeding. The long-term excessive menstrual flow may cause anemia, it should be immediate-early medical treatment, identify the reasons for treatment. Of course, it may be due to the uterus, ovaries are not normal or systemic disease, caused by menstrual volume is too small, this situation is not normal, on the timely medical treatment. Adolescent girls with menstrual flow into the more more common. The main reason is in puberty, ovarian function is still showing full maturity, this time as part of belonging to anovulatory menstrual in nature. There is no ovulation, there is no corpus luteum, there is no corpus luteum on the lack of progesterone. Thus, only in the proliferative phase endometrium can not reach a complete secretory phase, resulting in incomplete endometrial shedding affected by the contraction of the uterus, resulting in excessive menstrual flow. Such circumstances such as not to attract attention, over time, may appear pale, fatigue, dizziness and other symptoms of anemia, treatment should be seek medical treatment.

4, blood color. Of normal blood is dark red, blood mixed with spit off a small piece of endometrial, cervical mucus, vaginal epithelial cells, blood coagulation is not, therefore, no blood clots. If the blood thinner such as water, only a little pink, purple, or black, you are not normal. If the blood clot is completely not normal, may have had the site of bleeding and should seek medical treatment as soon as possible to ensure good health.