I haven't had my period for half a year.

If you haven't had your period for half a year, this is very serious. You must go for a gynecological examination as soon as possible. You must not delay your treatment, otherwise it will lead to amenorrhea. Especially for some female friends who still have reproductive needs, you should pay more attention to it. This is not a normal situation and must be improved through some treatment.

One type is physiological amenorrhea. That is, women do not have menstruation for a certain period of time due to some physiological reasons, such as pregnancy, lactation, and postmenopause;

The other type is pathological amenorrhea, which refers to the absence of menstruation due to certain pathological reasons, which can be caused by systemic or local lesions. Oligomenorrhea is also a manifestation of menstrual disorders and is closely related to amenorrhea. Oligomenorrhea can be divided into two types: oligomenorrhea and oligomenorrhea.

The normal menstrual cycle is regulated by the endocrine functions of each link of the hypothalamus-pituitary-ovarian axis. If any link is impaired, menstrual disorders will occur, sometimes leading to amenorrhea.

Examination of uterine function:

1. Drug testing. A progesterone test can be used. If there is no response to progesterone, an estrogen test can be performed.

2. Diagnostic curettage.

3. Hysteroscopy.

4. Measurement of basal body temperature. If it is biphasic, it means that the cause of amenorrhea is in the endometrium and the ovarian function is normal.

Ovarian function tests:

1. Diagnostic curettage.

2. Examination of cervical mucus crystals showed rows of ellipsoids on the smear, indicating that the estrogen level was affected by progesterone.

3. Vaginal exfoliated cytology examination, vaginal smear twice a week, dynamic indirect observation of ovarian estrogen levels.

4. The basal body temperature is biphasic, indicating normal ovarian function, ovulation and corpus luteum formation.

5. Measure the levels of estrogen and progesterone in the blood. If the levels are low, it indicates abnormal ovarian function or failure.

Examination of pituitary function:

1. Sella radiography to exclude pituitary tumors.

2. Determine the levels of serum follicle-stimulating hormone (FSH), luteinizing hormone (LH) and prolactin (PRL). FSH higher than normal (2.5 micrograms/liter) indicates hyperpituitarism and hypoovarian function; LH lower than normal (6 units/liter) indicates hypogonadism; if both FSH and LH levels are low, it indicates hypopituitarism or hypothalamic function; PRL level higher than normal indicates galactorrhea and amenorrhea syndrome.