What is the reason why the menstrual period is always advanced but suddenly delayed?

Women should pay attention to the time of their menstrual period. If their menstrual period is always early or suddenly delayed, they should pay attention to whether it is caused by pregnancy. Menstruation will stop after pregnancy. Also, if some drugs have side effects, these symptoms will also appear.

1. Pregnancy can be detected 7 days after the menstruation is delayed. You can use the "Early Pregnancy Test Strip" to test urine. If the result is positive, you are very likely to be pregnant. If the "Early Pregnancy Test Strip" is negative, then vice versa. But if you are pregnant, there will be other symptoms such as nausea, breast tenderness, etc. Of course, the last resort is to go to the hospital for an ultrasound examination.

2. Side effects of drugs, such as endocrine disorders after long-term use of contraceptives, can also cause delayed menstruation. Doctors also found, based on patient feedback, that a new generation of gastrokinetic drug, metoclopramide, also known as domperidone, may also cause this condition. Since metoclopramide does not easily cross the blood-brain barrier, it is believed that it has no inhibitory effect on central dopamine receptors. Central dopamine receptors are inhibited, resulting in a decrease in the amount of hypothalamic release factors entering the anterior pituitary. As a result, the anterior pituitary secretes less gonadotropin and corticotropin, leading to amenorrhea and delayed ovulation.

3. Caused by surgery, such as uterine surgery causing cervical adhesions and resulting in menstrual blood stasis, thus delaying menstruation.

4. Nutritional status.

5. Mental factors: Abnormal fluctuations in emotions such as excessive tension, sadness, joy, etc. will inevitably interfere with the normal work of the central nervous system, thereby affecting the regulation of ovarian function that determines menstrual changes and causing menstrual disorders.

6. Changes in external working conditions, living environment, climate, etc.: Irregular daily life, getting up early and going to bed late without good rest, or sudden cold or hot weather can cause menstrual disorders in women. In your case, it is recommended to go to the hospital for relevant examinations as soon as possible. Actively treat the disease after the cause is determined.

7. Long-term exposure to harmful radiation, chemotherapy drugs, etc. may also cause premature ovarian failure and delayed menstruation. Pay attention to ovarian protection. For older women (over 40 years old), delayed menstruation and exclusion of other endometrial lesions are mostly caused by the gradual decline in ovarian function, and no special treatment is required clinically.