What are the normal values ​​for the five male sex hormone tests?

Men's health often depends on the normal secretion of hormones, including pituitary hormones, sex hormones, etc. However, due to the different living environments and eating habits of each man, the secretion of sex hormones will also be different. So, what do the five male sex hormone tests check?

Normal value

1. Testosterone (T): 50% of testosterone in women is converted from peripheral androstenedione, about 25% is secreted by the adrenal cortex, and only 25% comes from the ovaries. Its main function is to promote the development of the vagina, labia and mons pubis. It has an antagonistic effect on estrogen and has a certain impact on systemic metabolism. The normal concentration of female blood T is 0.7-3.1nmol/L. High blood T value is called hypertestosteroneemia, which can cause infertility. When suffering from polycystic ovary syndrome, the blood T value also increases. According to clinical manifestations, other hormones can be measured if necessary.

2. Estradiol (E2): It is secreted by the ovarian follicles. Its main function is to promote the transformation of the endometrium into the proliferation phase and promote the development of female secondary sexual characteristics. The concentration of blood E2 is 48-521 pmol/L in the preovulatory phase, 70-1835 pmol/L in the ovulatory phase, and 272-793 pmol/L in the postovulatory phase. Low values ​​are seen in ovarian dysfunction, premature ovarian failure, and Sheehan syndrome.

3. Progesterone (P): secreted by the corpus luteum of the ovary, its main function is to promote the transition of the endometrium from the proliferative phase to the secretory phase. The blood P concentration is 0-4.8nmol/L before ovulation and 7.6-97.6nmol/L after ovulation. Low blood P values ​​after ovulation are seen in luteal insufficiency, ovulatory dysfunctional uterine bleeding, etc.

4. Luteinizing hormone (LH): A glycoprotein hormone secreted by the alkaliphilic cells of the anterior pituitary gland. It mainly promotes ovulation. Under the synergistic action of FSH, it forms a corpus luteum and secretes progesterone. The concentration of blood LH is 2-15mIU/ml in the preovulatory period, 30-100mIU/ml in the ovulatory period, and 4-10mIU/ml in the postovulatory period. The normal value in the non-ovulatory period is generally 5-25mIU/ml. A level lower than 5mIU/ml indicates gonadotropin insufficiency, which is seen in Sheehan syndrome. If high FSH is combined with high LH, ovarian failure is very certain and no other tests are needed. LH/FSH ≥ 3 is one of the bases for diagnosing polycystic ovary syndrome.

5. Follicle-stimulating hormone (FSH): A glycoprotein hormone secreted by the alkaliphilic cells of the anterior pituitary gland. Its main function is to promote the development and maturation of ovarian follicles. The concentration of blood FSH is 1.5-10mIU/ml in the preovulatory period, 8-20mIU/ml in the ovulatory period, and 2-10mIU/ml in the postovulatory period. Generally, 5-40mIU/ml is considered normal. Low FSH values ​​are seen during estrogen-progestin therapy, Sheehan syndrome, etc. High FSH values ​​are seen in premature ovarian failure, ovarian insensitivity syndrome, primary amenorrhea, etc.