Endocrine tests usually refer to the six sex hormone tests, including luteinizing hormone, follicle stimulating hormone, prolactin, progesterone, estradiol and testosterone, which are commonly used to check endocrine function and assist in the diagnosis of certain endocrine diseases. 1. Luteinizing hormone (LH) and follicle stimulating hormone (FSH): If FSH and LH are lower than normal, it may indicate damage to the hypothalamus or pituitary gland, such as Sheehan’s syndrome; if FSH and LH are higher than normal, it indicates that there are lesions in the ovaries, such as premature ovarian failure, ovarian insensitivity syndrome, primary amenorrhea, etc. 3. 3. Prolactin (PRL): levels are usually higher in pregnant and lactating women. Pathologic abnormal elevation is common in prolactinoma, etc. Abnormal decrease is common in pituitary disorders, e.g., Schihan’s syndrome. 4. Progesterone (P): can reflect the function of the corpus luteum, luteal phase test can determine whether ovulation, at this time the progesterone level drops early may suggest that the corpus luteum is not functioning properly. 5. Estradiol (E2): the main function of estrogen is to promote the proliferation of the endometrium and the development of female secondary sexual characteristics, and the decrease can be seen in ovarian hypoplasia, premature ovarian failure, and ovarian dysplasia. 6. Testosterone (T): Elevated testosterone may cause infertility, which can be seen in polycystic ovary syndrome, androgen-secreting adrenal tumors. It is recommended that patients with endocrine function abnormalities should go to regular hospitals for timely consultation and standardized diagnosis and treatment under the guidance of doctors, so as to avoid delaying the condition.