How to judge the normal and abnormal menstrual periods?

1, the menstrual cycle.

General woman's menstrual cycle is 28-30 days, but also some 30 days to a month, someone even 40 years once menstruation. As long as there are laws, which is the first time in much the same, the menstrual cycle are normal. In addition, menstrual susceptible to a variety of factors, so early or wrong after 3-5 days, it is normal.

If the menstrual cycle is 20 days, the next is 40 days, a lot of days apart, but often this situation, some even for periods 1-2 days, 10 days and to 1-2 days, lost the cyclical, and that is not working properly, call menstruation.

It should be noted that the girls of menarche, ovarian function just development, is not perfect, functional disorder occurs, not laws, this is not a pathological phenomenon, without fear and concerned, first and second years of ovarian maturation, menstruation is destiny became normal.

2, menstrual period (also known as walking period).

A woman's menstrual cycle is about 3-5 days, 2-8 days and it was not uncommon. General Law of passing through the first day of blood, second and third days increasing, then gradually reduced until the via clean. This is because the first day off just the beginning of the endometrium, the second and third days of endometrial bleeding volume abscission, also increased, uterine contraction by stimulating and strengthening, a large amount of blood. Some people via clean after a day or two and to the point that you would like to call "blood back", this is not a disease, which is a normal phenomenon. However, some women menstrual period for up to 10 days, or even 20 day period cannot articulate; there's a very short period, only the "settlement" that is, too. These two phenomena are not normal.

3. the amount of blood.

Women's menstrual varies from person to person, the amount of the individual differences are large, usually 20-10 ml, 50 cent on average. General daily for 3-5 times a sanitary napkin or menstrual paper, even if it is normal.

If the amount of excessive blood, a sanitary napkin or via paper soon also wet, even blood drips down along the thigh, this is not normal.

Too much blood, may is mental tension, environmental change, poor nutrition and metabolic disorders, and other factors of dysfunctional uterine bleeding. Via long-term excessive causing anemia, should that early treatment, identified, for treatment. Of course, may also be due to abnormal uterine and ovarian or systemic diseases, causing menstrual rarely, this situation is not normal, it timely medical treatment. Adolescent girls to menstrual quantity into many of the more common. The main reason for this is in puberty, and ovarian function is shown in full maturity, now part of the menstrual cycle is anovulatory. There is no ovulation is the corpus luteum corpus luteum, not just lack of progesterone. Therefore, endometrial proliferation period can only be in but not achieve perfect secretion period as shedding incomplete endometrium and affect the uterus contractions, causing blood too much. This case does not call attention to the passage of time, may appear pale, weak, dizzy, anemia symptoms, you should seek medical advice and treatment.

4. blood color.

Normal blood is dark red blood mixed with shedding of endometrial small spit tablets, cervical mucus, vaginal epithelial cells, blood does not clot solidification, so no. If a blood thinner such as water, only a little pink, or purple hair hair, you are not normal. If blood is blood coagulation, is not working properly, it may be another bleeding sites, medical advice, and ensure good health.

(Edit: Zheng Yan internships, MD)