refers to pain in the abdomen or lower back before, during or after menstruation. When the attack is severe, the patient becomes pale, cold sweat, cold hands, cold feet, nausea and vomiting, and it may even lead to weakness and fainting.

2, the color of menstrual blood

Normal blood is dark red, blood mixed with small fragments of shed endometrium, cervical mucus, vaginal epithelial cells, no blood clots. If the menstrual blood is thin as water, only a little pink or dark and purple, it is not normal. If the menstrual blood is completely clotted, it is also not normal, there may be another site of bleeding, you should seek medical attention as soon as possible to ensure good health.

3, early menstruation

Early menstruation refers to the shortening of the menstrual cycle, shorter than 21 days, and more than 2 consecutive cycles. The follicular phase is short, only 7 to 8 days, or the luteal phase is shorter than 10 days, or the temperature rise is less than 0.5℃.

4, abnormal bleeding

Women in the physiological period of menstrual blood or bleeding in the stage of labor and delivery, are considered normal bleeding, in addition to these two situations other than bleeding are abnormal vaginal bleeding.

5, menstruation (also known as menstrual period)

The menstrual period of a woman is about 2 to 5 days. The general pattern of menstruation is that there is not much blood on the first day of menstruation, more on the second and third days, and then it gradually decreases until the menstrual blood is clean. Some people after the blood is clean, after a day or two and a little, commonly known as "menstrual blood back", this is not a disease, but a normal phenomenon. However, some women's menstrual period of up to 10 to 20 days, menstrual dribbling; some menstrual period is very short, just "a wobble" that is, these two phenomena are not normal.

6, prolonged menstruation

Normal menstrual cycle, normal amount of menstruation, but the period of prolonged menstruation, menstruation period of more than 7 days, or even 2 weeks net. Those with inflammation usually have pain in the abdomen, aggravated by menstruation, and usually have a large amount of leukorrhea, yellow or yellowish-white in color, thick and smelly. Those with luteal atrophy atrophy are accompanied by heavy menstrual flow, and those with prolonged endometrial repair still have a small amount of persistent vaginal bleeding after the normal menstrual period.

7, the amount of menstrual blood

The amount of women's menstrual flow varies from person to person, generally 20 to 100 milliliters. Generally 3 to 5 times a day to change the sanitary napkin or paper, even if it is normal. If the amount of menstrual blood is too much, change a sanitary napkin or paper soon again wet, or even menstrual blood down the leg down, this is not normal. Menstrual flow is less than 20 milliliters, only a small amount or even can not use sanitary napkins, menstrual blood is dark purple or pink, is also not normal.

8, delayed menstruation

Menstruation staggered more than 7 days, or even 40 to 50 days before coming once, and appear more than two consecutive menstrual cycles. In those with ovulation, basal body temperature is biphasic, but the follicular phase is long and the high temperature phase is low; in those without ovulation, basal body temperature is monophasic.

9, sudden menopause

Generally speaking, there are very few examples of women's menstrual cycles going from normal to sudden menopause, and most women have to go through a long or short period of cyclic women's menstrual disorders first.

Irregular menstruation is a very common gynecological disease, women can only understand the symptoms of irregular menstruation, in order to carry out timely judgment and effective disease prevention and treatment.