If this menstrual cycle is 20 days,
The next time is 40 days, which often happens. Some even menstruate for 1-2 days, and come after 10 days 1-2 days, losing periodicity and belonging to irregular menstruation.
When girls have menarche, because the ovaries have just developed and their functions are not perfect, there will be dysfunction and irregularity, which is not a pathological phenomenon.
Menstruation: The menstrual period for women is about 2-5 days. The general rule of menstruation is that there is not much menstrual blood on the first day, it increases on the second or third day, and then gradually decreases until the menstrual blood is clean. This is because on the first day, endometrial shedding just started, and on the second or third day, endometrial shedding increased and the amount of bleeding increased. The uterus is stimulated, the contraction is strengthened, and a large amount of menstrual blood is discharged. Some people come back a little after their menstrual blood is clean for a day or two, which is commonly known as "menstrual blood return". This is not a disease, it is a normal phenomenon. But some women have menstrual period 10-20 days, and menstruation is endless; Some menstrual periods are extremely short and just "flash by". Neither of these phenomena is normal.
Menstruation: Menstruation varies from person to person, generally 20- 100 ml. It is normal to change sanitary napkins or paper 3-5 times a day. If there is too much menstrual blood, changing sanitary napkins or paper will soon get wet again, and even menstrual blood will drip down your legs, which is not normal. Menstruation may be caused by mental stress, environmental change, malnutrition and metabolic disorder. Excessive menstrual blood for a long time can cause anemia, so we should find out the reason and treat it. Of course, if the menstrual flow is too small because of abnormal uterus and ovary or systemic diseases, this situation is not normal, so you should seek medical advice in time.
It is more common for adolescent girls to have excessive menstrual flow. The main reason is that during adolescence, the ovarian function has not fully developed, and some menstruation at this time belongs to anovulation. Without ovulation, there is no corpus luteum, and without corpus luteum, there is no progesterone. Therefore, the endometrium can only be in the proliferative phase, but can not reach the perfect secretory phase, which makes the endometrium fall off incompletely, affects uterine contraction, and causes excessive menstrual blood. If you don't notice this situation, over time, you will have anemia symptoms such as pallor, fatigue and dizziness, and you should seek medical attention.
Color of menstrual blood: Normal blood is dark red, with small pieces of exfoliated endometrium, cervical mucus and vaginal epithelial cells, and no blood clots. If menstrual blood is as thin as water, with only a little pink or dark purple, it is abnormal. If menstrual blood is completely a blood clot, it is abnormal, and there may be another bleeding site. You should see a doctor as soon as possible to ensure your health.