All reasons for missed menstruation

The physiological phenomenon of menstruation is a very important sign of a woman's physical maturity, and generally speaking, when a woman has her period, it means that she is fertile. Therefore, many women are afraid of not having their menstruation, but some women really do have missed menstruation due to physical reasons or other reasons. After discovering this situation, female friends usually become very worried. So what are the reasons why women do not have their periods?

What are the reasons for missing menstruation?

1. Tuberculous endometritis causes amenorrhea

This is because tuberculosis invades the endometrium, causing inflammation of the endometrium and damage to varying degrees, which then leads to scar tissue and amenorrhea. Therefore, if you have tuberculous endometritis, you should get treatment in time without delay.

2. The effect of the drug causes amenorrhea

For example, endocrine disorders after taking birth control pills can also cause delayed menstruation. According to patient feedback, doctors also found that the gastrokinetic drug metoclopramide, also known as domperidone, may also cause it. Because metoclopramide does not easily pass through the blood-brain barrier, it is believed that it has no inhibitory effect on central dopamine receptors. The inhibition of central dopamine receptors causes a decrease in the amount of factors released by the hypothalamus into the anterior pituitary gland, so the secretion of gonadotropin and corticotropin by the anterior pituitary gland is reduced, leading to amenorrhea and delayed ovulation.

3. Amenorrhea due to surgery

For example, uterine surgery may cause cervical adhesions, resulting in blood stasis, which may prevent menstruation. In addition, after abortion, the changes in hormones may also cause ovulation to be delayed, and menstruation will also be postponed. Therefore, there may be a phenomenon of not having menstruation for one or several months after abortion.

4. Ovarian reasons lead to amenorrhea

It is also called ovarian amenorrhea. The reason why women do not have menstruation is that the hormones secreted by the ovaries act on the endometrium, causing it to change, then fall off and bleed. If the ovaries cannot secrete hormones, the endometrium will not change and menstruation will stop naturally, such as congenital ovarian dysplasia, premature ovarian failure, etc. Amenorrhea caused by this reason is often accompanied by the degeneration of female characteristics, such as equalization of breasts.

5. Systemic chronic diseases leading to amenorrhea

Pulmonary tuberculosis, pituitary tumor, liver cirrhosis, heart disease, nephritis, pelvic blood, etc. can affect the normal function of the hypothalamus due to chronic wasting diseases, causing amenorrhea.

6. Obstruction of the lower reproductive tract leading to amenorrhea

For example, there is congenital atresia in part of the cervix, vagina, hymen, labia, etc., or adhesive atresia caused by acquired damage. Although menstruation occurs, menstrual blood cannot flow out. This situation is called latent or pseudo-amenorrhea. Atresia of the lower reproductive tract can be treated by a doctor.