What is the reason for heavy menstrual flow after abortion?

After an abortion, if the uterus does not recover in time, symptoms of irregular menstruation are likely to occur. Therefore, menstrual flow may increase after abortion. A small number of women will experience menstrual disorder symptoms such as irregular menstrual cycles and amenorrhea after abortion. So, why does the menstrual flow become heavy after an abortion? In fact, the main reason for heavy menstrual bleeding after an abortion is damage to the ovaries, which requires some time to recover.

Causes of heavy menstrual flow after miscarriage

1. When a woman undergoes surgery, too much of her ovarian endometrium is scraped away, so that the endometrium cannot be completely restored in a short period of time, resulting in heavy menstrual bleeding.

2. After painless abortion, the body's secretions change, especially the level of human chorionic gonadotropin drops suddenly, which makes the ovaries unable to respond normally to the gonadotropin of the anterior pituitary gland, causing heavy menstrual bleeding.

3. After the operation, women may feel nervous and frightened. These adverse mental factors may cause irregular menstruation, which may lead to heavy menstrual bleeding after painless abortion.

4. Sexual intercourse should be avoided within one month after painless abortion. Some couples fail to do so, resulting in infection and inflammation of the ovarian cavity, leading to heavy menstrual bleeding.

5. Performing painless abortions multiple times in a short period of time will seriously damage the basal layer of the ovarian endometrium and cause other gynecological diseases.

Causes of irregular menstruation

1. Abnormal emotions cause menstrual disorders

Emotional abnormalities, such as long-term mental depression, mental tension, or severe mental stimulation and psychological trauma, can lead to menstrual disorders or dysmenorrhea or amenorrhea. This is because menstruation is caused by the hormones secreted by the ovaries acting on the endometrium. The hormones secreted by the ovaries are controlled by the hormones released by the pituitary gland and hypothalamus. Therefore, any abnormality in the function of the ovaries, pituitary gland, or hypothalamus will affect menstruation.

2. Cold stimulation causes oligomenorrhea or even amenorrhea

When women are exposed to cold during menstruation, the blood vessels in the pelvis will contract excessively, which can cause oligomenorrhea or even amenorrhea. Therefore, women should pay attention to preventing cold and avoiding dampness during menstruation in their daily life.

3. Dieting causes irregular menstruation

A girl’s body fat must account for at least 17% of her body weight before she can have her first menstruation, and her body fat must reach at least 22% of her body weight to maintain a normal menstrual cycle. Excessive dieting will cause a large amount of fat and protein in the body to be consumed due to insufficient energy intake, resulting in estrogen synthesis disorders and obvious estrogen deficiency, affecting menstruation, or even causing scanty menstruation or amenorrhea. Therefore, women who pursue a slim figure must not diet blindly.

4. Smoking and drinking cause menstrual disorders

Certain ingredients and alcohol in cigarettes can interfere with physiological processes related to menstruation and cause menstrual disorders. Among women who smoke and drink excessively, 25% to 32% go to the hospital for treatment due to menstrual disorders. Among women who smoke more than one pack of cigarettes a day or drink more than 100 ml of strong liquor, the incidence of menstrual disorders is three times that of women who do not smoke or drink. Therefore, women should not smoke and drink less alcohol.