Causes of irregular menstruation

What are the causes of irregular menstruation?

1. Uterine diseases: For example, uterine polyps, uterine fibroids, uterine adenomyomas, etc. can cause excessive menstrual bleeding. Some people with submucosal uterine fibroids or endometrial polyps often have heavy bleeding.

2. Pregnancy: Due to problems during implantation or the support of the endometrium, there will be abnormal bleeding in the early stages of pregnancy. At this time, you need to be careful about premature birth or miscarriage.

3. Thyroid problems: If the thyroid function is too low or too high, it will cause ovarian dysfunction and irregular menstruation.

4. Poor liver function: Poor liver function will slow down female hormones, cause endometrial hyperplasia, and cause abnormal bleeding.

5. Difficulty in blood clotting: For example, people who lack platelets or have leukemia will have coagulation disorders, which will cause them to be unable to stop bleeding after menstruation, resulting in heavy menstrual flow.

6. Malignant diseases: such as cervical disease, endometrial disease, ovarian disease and some diseases that secrete female hormones, which cause the proliferation of the endometrium and form irregular menstruation, or the cervix is ​​directly invaded by the disease, causing bleeding.

7. Hormone imbalance: Especially in adolescent girls and menopausal women, hormone imbalance causes anovulatory bleeding, which results in irregular menstruation during the first menstruation or near menopause. It also causes the unlimited growth of the endometrium, which grows to a thickness that the uterus cannot bear, causing breakthrough bleeding. Therefore, the amount of menstrual blood is often small and dark brown in the early stage, and will develop into heavy bleeding over time.