FSH
Follicle Stimulating Harmone (FSH)
The chemical messenger inside the body is secreted by the endocrine glands directly into the blood that acts on different aspects of bodily functions and processes known as hormones. Follicle-stimulating hormone (FSH) is a glycoprotein polypeptide or simply a gonadotropin hormone. Its effects and activities are chiefly associated with the human reproductive system.
Production Site:
Role
It regulates the reproductive processes of the body concerning growth, development, and pubertal maturation. The maturation of primordial germ cells in both males and females is stimulated by the follicle-stimulating hormone.
Roles In Males
In Males the Sertoli cells are induced by the FSH to secrete androgen-binding proteins (ABPs). Inhibin’s negative feedback mechanism on the anterior pituitary gland regulates its activity. The activation of Sertoli cells sustains spermatogenesis and the secretion of inhibin B is also stimulated. Read more
Consequences In Males
In Males The primary spermatocytes are stimulated by the FSH to undergo the first division of meiosis to form secondary spermatocytes. Read more
Roles In Females
In Females the FSH initiates the follicular growth by affecting the granulosa cells. The rise in inhibin B cause a decline in the FSH level in the late follicular phase. There is a slight rise in the FSH level at the end of the luteal phase that has its significance in starting the next ovulatory cycle. Read more
Consequences In Females
In Females The follicle-stimulating hormone controls the menstrual cycles. The growth and recruitment of the immature follicles in the ovary. Read more
What are normal FSH levels by age?
- Male
FSH Related Abnormalities
High FSH Levels
In females, the FSH level is high after menopause. It may contribute to cardiovascular diseases or postmenopausal osteoporosis.
If the FSH level is high during the reproductive years, it is abnormal and is associated with a number of complications including premature ovarian aging/failure, gonadal dysgenesis, turner/ Klinefelter/swyer syndrome, castration, testicular failure, etc. Read more
Low FSH Levels:
Low levels of FSH are chiefly associated with hypogonadism or simply the failure of gonadal function. In males, failure in the production of a normal number of sperms, and in females, interrupted reproductive cycles is reported. The consequences of low FSH secretions may include polycystic ovarian syndrome + infertility, hypothalamic suppression, hypopituitarism, hyperprolactinemia, gonadotropin deficiency, etc. Read more
FSH Blood Test
FSH Test For Women
In women, the FSH test is associated with the assessment of infertility problems or interrupted menstrual cycles. It may also be done for diagnosing the diseases involving the ovaries or the disorders of the pituitary gland. Read more
FSH Test For Men
FSH tests in men may be conducted to analyze low sperm count. Another reason for conducting the test may be the assessment of the gonadal failure of testicular dysfunction. Read more
FSH Test For Children
FSH test in children is associated with the diagnosis of the onset of puberty on both cases either if the child experiences early or delayed puberty, FSH test is conducted for the assessments. Read more
Indications
Protocol
Before the test, you must address in front of your doctor any existing medical disorders like ovarian cyst, vaginal bleeding, sex-dependent hormone tumors, or thyroid disease, etc. Also talk to your doctor about any prescription or non-prescription medications, dietary supplements, and also any type of birth control if you use, such as a pill or an intrauterine device, etc. because it may play a role in the test.
Procedure
The procedure of the FSH blood test is quite simple as it only involves taking a sample of blood from the patient’s body. The blood is mostly taken from the arm. Before inserting the needle, the site is cleaned and sterilized by an antiseptic, and then the needle is injected to draw the required amount of blood. After removing the needle pressure is applied with a cotton ball on the site of injection for few minutes.
High FSH Levels
In Women
If a woman if we try to find out what causes high FSH levels, then the possible medical diseases include polycystic ovarian syndrome, chromosomal abnormality, loss of ovarian function or ovarian failure, or menopause. High FSH levels and pregnancy can also occur but, the entire pregnancy has to be dealt with extreme caution to avoid any chances to miscarriage.
FSH test is also conducted to determine a woman’s ovarian reserve (women’s age-related fertility potential). If she reports a high level of FSH then this indicates that the chances of becoming pregnant may be lower than expected for her age and such cases probably need infertility treatments. Read more
In Men
In order to understand what causes high FSH levels in males, the possible causes include Klinefelter’s syndrome or any testicle-related disorders, either they are absent, not functioning properly, or are damaged. Read more
In Children
High FSH level in children indicates that the onset of puberty is near.
How to Reduce High FSH Levels
Generally, it is easier to reduce high levels of FSH by using various medications such as Lupron and estrogen, however medications should only be taken after checking FSH levels twice. Read more
Low FSH Levels
In Women
Its chief indication in women is the slow or total absence of the production of eggs. Other indications may be the dysfunction of the hypothalamus or pituitary gland or any tumor which may be interfering with the brain’s activity of producing FSH. Read more
In Men
Low FSH levels report that the man is not producing sperm. Other indications are the same as for women like interference of any tumor with the brain activity or the dysfunction of the pituitary gland or hypothalamus. Read more
In Children
Low FSH levels are the clear indication of delayed puberty in children, this means that the sexual features and organs are not developing at the time when they should.
Read more
Closing Thoughts:
Gonadotropin cells of the anterior pituitary glands synthesize and secrete the Follicle-Stimulating Hormone (FSH) in the bloodstream. The control of FSH secretion from the pituitary gland is unknown. It is reported that the Gonadotropin-Releasing Hormone (GnRH) plays an important role in the secretion of FSH. But GnRH is not directly correlated with an increase in circulating FSH. The cessation of FSH is associated with hypothalamic-pituitary disconnection. Hypothalamic-pituitary gonadal axis subjects FSH to the estrogen feedback from the gonads.
