Menstruation lasts more than 20 days

If menstruation does not come for more than 20 days, you should pay attention. At this time, the best thing to do is to go to the hospital for relevant examinations to prevent your symptoms from getting worse. You should also rule out pregnancy, because this situation is very abnormal. It may be caused by some problems in your body. You should take appropriate measures based on the examination results.

It is normal for menstruation to be delayed by about a week. If you have sexual intercourse, use condoms for contraception, and the condom does not break or leak fluid, the possibility of pregnancy is low. The self-test rate of early pregnancy test strips is also low. Close observation is recommended. If the menstruation is delayed for about 10 days, you can go to the hospital for a blood HCG test to determine whether you are pregnant.

After excluding pregnancy, necessary laboratory and auxiliary examination methods should be selected according to the specific condition: ① Ovarian function test. ②Pituitary function test. ⑤Ultrasound examination is used to check whether there are polycystic changes in the ovaries. ⑦ Magnetic resonance imaging examination of pituitary microadenoma. ③CT examination of the sella turcica to determine whether there is a pituitary adenoma.

1. Delayed menstruation

The menstrual cycle is delayed for more than 8 to 9 days, or even occurs every 40 to 50 days. If the delay does not exceed 7 days and there are no other symptoms, it is not considered as this disease.

2. Accompanying symptoms and signs

(1) Pregnancy: If pregnancy causes delayed menstruation, it may be accompanied by symptoms such as fatigue, drowsiness, nausea, and vomiting;

(2) Symptoms and signs of various primary diseases are often present. Polycystic ovary syndrome may manifest as obesity, hirsutism, acne, and infertility; hypothyroidism is often accompanied by apathy, memory loss, slow reaction, non-pitting edema, anorexia, abdominal distension, constipation, etc.

Delayed menstruation, also known as "infrequent menstruation", "delayed menstruation", "overdue menstruation", etc., is a common type of menstrual disorder. The female menstrual cycle is generally 21 to 35 days, with an average of 28 days. About 7 days earlier or later is still within the normal range, and the length of the cycle varies from person to person. However, if menstruation does not occur after more than 7 days, it is considered delayed menstruation. Various factors that affect the female central nervous system-hypothalamus-pituitary-ovarian axis and uterus may lead to delayed menstruation. It can occur during an ovulatory or anovulatory menstrual cycle. If women of childbearing age find that their menstrual period is delayed by more than 10 days, pregnancy should be ruled out first.