Menstrual period duration changed from 5 days to 3 days

Menstruation generally lasts for a week. The difference in the amount of bleeding comes from different personal conditions. One week is normal. If there is a large difference, you should go to the hospital for treatment, find the cause in time, and take protective measures for your body. For some people, the menstrual cycle changes from five days to three days, which is an abnormal phenomenon. So what is the cause of this? How should we solve this problem?

Considering that the possibility of less menstrual flow is greater. There are many reasons for oligomenorrhea, such as: 1. Hypopituitarism, insufficient estrogen secretion from the ovaries, low estrogen levels in the body, insufficient endometrial proliferation, and thin endometrium. Long-term use of contraceptives can also lead to oligomenorrhea. 2. Endometrial lesions, endometrial dysplasia, rough curettage damaging the endometrium, endometrial tuberculosis; 3. There are individual differences, after menarche, the menstrual flow has been very small, but ovulation and reproductive function are normal, etc. 4. Progressive menstrual reduction is often a precursor to amenorrhea. It is recommended to go to a regular hospital for relevant examinations in time. After the cause is determined, targeted treatment should be received to avoid delaying the disease.

There are many reasons for scanty menstruation, such as endocrine disorders, gynecological inflammation, changes in mental environment, and the endometrium itself, such as endometrial tuberculosis causing endometrial lesions or artificial abortion, curettage causing thin endometrium, etc. Long-term scanty menstruation may cause amenorrhea or infertility. It is recommended that you go to the hospital for examination in time, identify the cause, and actively treat the symptoms to avoid affecting your health.

1. The menstrual period lasts 4-5 days. As the levels of progesterone and estrogen in the blood drop to the lowest level, the prostaglandins produced by the uterus together cause the spiral arteries to spasm, thereby disrupting the blood supply to the endometrium. This will cause the endometrium and its blood vessels to necrotize and fall off, and the resulting bleeding can flush the dead endometrium into the uterine cavity. On the other hand, the increase in prostaglandins can also lead to contraction of the myometrium, which helps to discharge blood and endometrium from the uterine cavity, but can also cause dysmenorrhea that accompanies menstruation.

2. The proliferative phase (also called the follicular phase in terms of ovarian changes) lasts about 10 days, which is around the 5th to 14th day of the menstrual cycle. During this period, as the follicles grow, they secrete more and more estrogen, which gradually increases the estrogen level in the blood, thereby repairing the endometrium. As a result, the endometrium gradually grows and thickens, and the uterine glands also grow.

3. The secretory phase is also called the luteal phase in terms of ovarian changes. It lasts about 14 days, that is, the 15th to 28th day of the menstrual cycle. This period is the result of the progesterone secreted by the mature follicle that forms a corpus luteum after ovulation at the end of the previous period, which acts on the endometrium. Progesterone can cause blood vessel proliferation and congestion in the thickened endometrium, and cause the uterine glands to expand and bend to secrete mucus. These changes in the endometrium facilitate implantation (conception). If pregnancy does not occur during this menstrual cycle, the corpus luteum will atrophy due to lack of support from the relevant hormones, and will stop secreting progesterone and estrogen. When the levels of these two sex hormones in the blood drop to extremely low levels, the thickened endometrium undergoes necrosis, bleeding and shedding due to the loss of hormonal support, and the menstrual period begins.