**In adults**, LH and FSH testing may be prescribed in the following cases: - A woman has difficulty getting pregnant or has irregular periods or her periods have stopped.... - When a male sexual partner cannot conceive.... When a man's testosterone level is low.... or for example, when he has low muscle mass or decreased libido.... - When a woman suspects a pituitary disorder ** Pituitary disorder can affect the production of several hormones and as a result there may be different symptoms.... Children**, LH and FSH may be prescribed when a boy or girl does not enter puberty at the right age. from: - Breast enlargement in girls - Growth of excess hair on the body - Testicle and penis growth in boys - Early onset of menstruation in girls **What do FSH test results mean?** LH test results are usually considered with the results of other hormone tests such as FSH, estrogen or testosterone.. LH and FSH levels can help distinguish between conditions affecting the ovaries themselves (primary) and ovarian dysfunction due to pituitary or hypothalamic disorders (secondary)... ### Items: - lack of ovarian growth (ovarian agenesis) - Chromosomal disorder, such as Turner syndrome - Defects in steroid production by the ovaries, such as 17 alpha hydroxylase deficiency ### Injury or damage to the ovaries due to: - Exposure to radiation - Chemotherapy - Autoimmune disease ### The underlying conditions that affect ovarian function are: - Polycystic ovary syndrome - Adrenal disease - Thyroid disease In women who are trying to get pregnant, multiple LH tests can be used to detect increased ovulation...a rise in LH indicates ovulation....during menopause, a woman's ovaries stop working...so LH levels rise....low levels of LH and FSH may be seen in pituitary or hypothalamic problems.... ### **FSH test results in men:** High levels of LH may indicate a condition that affects the testicles themselves. Some examples include: - Viral infection (mumps) - Trauma, injury - Exposure to radiation - Chemotherapy - Autoimmune disease Germ cell tumor - Failure to develop normal gonads (gonadal agenesis or gonadal dysgenesis) - Chromosomal disorder, such as Klinefelter syndrome Low levels of LH and FSH may indicate a problem with the pituitary or hypothalamus.. The LH response to GnRH can help differentiate between a pituitary disorder and a hypothalamic problem.... Once the baseline LH level has been measured...a dose of GnRH is injected into the individual...the next increase in the LH level It shows that the pituitary gland responds to GnRH and a disorder.. In the hypothalamus it shows that a decrease in the pituitary gland does not indicate the presence of Gn and does not indicate the presence of GH.. A disease involving the pituitary gland... ### **FSH test results in children:** In minors, higher levels of LH and FSH than expected for age, when accompanied by the appearance of secondary sexual characteristics at an early age, is a sign of precocious puberty. This is much more common in girls than boys. Examples include: - Tumor of the central nervous system - Brain surgery, trauma - Inflammation in the central nervous system (such as meningitis, encephalitis) Normal levels of LH and FSH before puberty, in children showing signs of puberty (such as pubic hair growth and acne) may indicate a condition caused by high levels of estrogen or testosterone hormones... - Use of estrogen or testosterone creams or gels - Premature adrenarc (premature awakening of the adrenal glands) - Tumors that produce hormones.... - Adrenal gland tumors - Ovarian tumor or cyst - Testicular tumors Normal levels of FSH and LH, along with few signs of puberty, may be a normal change of puberty.. In delayed puberty, LH and FSH levels can be high, normal, or below normal for young adults in this age range. Testing the LH response to GnRH, in addition to other tests, can help diagnose some causes of puberty. Includes: - Failure of ovaries or testicles - Hormone deficiency - Turner syndrome - Klinefelter syndrome - Chronic infections - Cancer - Anorexia nervosa ### ><**If a person has problems with pregnancy, what tests should be done? Initial tests for infertility often include measuring LH and FSH levels. Other hormone tests may be done, as well as a post-coital exam... ### **Can an LH test be used to detect ovulation?** The LH test is often used to predict ovulation by detecting the monthly surge of LH before ovulation in women. This increase indicates ovulation, but cannot be confirmed for ovulation. Men also produce FSH and LH... these hormone levels are important to the male reproductive process... FSH stimulates the testicles to produce sperm... In men, if the LH test level is less than a thousand, the level may be lower. Cases of performing various tests in the fields of pathology, genetics and clinical.. > Address: Mashhad - Vakil Abad - Kausar Blvd. - between 2 and 4 Kausar - Farabi doctors building - negative one floor.. Contact numbers: 051-38840404 and 051-38820202 and 09028840404