Urine can be tested by early pregnancy test paper after menstruation is delayed for ten days. If it is positive, it is likely to be pregnant, and if it is negative, it is the opposite. But if you are pregnant, you will also have other symptoms such as nausea and breast pain. Of course, the last way is to do B-ultrasound.

2. Side effects of drugs

Such as endocrine disorders after taking birth control pills, can also cause menstrual delay. The central dopamine receptor is inhibited, which reduces the amount of hypothalamic release factor entering the anterior pituitary gland, so the gonadotropin and corticotropin secreted by the anterior pituitary gland decrease, leading to menopause and delayed ovulation.

3. Caused by surgery

Uterine cavity surgery causes cervical adhesion and causes menstrual blood stasis, thus delaying menstruation.

4. Others

Such as mental stress, stress, environmental changes and other psychological factors, some diseases that affect endocrine. Can cause delayed menstruation.

5. Endocrine disorders, such as adrenocortical hyperfunction, and patients with chronic diseases, such as anemia, tuberculosis, nephritis, diabetes and other diseases, experts say that the above diseases, in addition to endangering health, are still common causes of menstruation.

6. From the point of view of traditional Chinese medicine, this disease is mostly yin and blood deficiency, and it is also exhausted. Generally, it is caused by qi and blood deficiency and kidney deficiency. When treating this disease, spleen and kidney should be given priority to. When qi and blood are supplemented, menstruation will be normal.

7. When women have pituitary diseases, such as pituitary dysfunction and pituitary tumor diseases. And ovarian diseases, such as ovarian cysts and ovarian dysplasia, are common causes of menstrual failure, so it is very important to treat them in time.