In a woman with good ovarian reserves, injected FSH will lead to strong egg growth in her ovaries. In a woman with poor ovarian reserves, the ovaries will not respond as well. Your doctor may just need to try a different protocol. If a doctor tells you that IVF is not possible without using an egg donor, get a second opinion before moving forward. Another doctor may have an approach that could work better for your individual situation and needs.
They are just one factor to take into consideration. The blood test is like any other blood test. Your doctor will tell you when to have the test done. For the test, a nurse will draw blood from a vein in your arm. You may feel a small pinch, but the test is generally pain-free and simple. There are also at-home FSH tests available to purchase, though it's worth noting that they're not as reliable. These work similarly to a pregnancy test in that you test your hormone levels with urine.
The test could tell you if your levels are too high, but it may still give you a "normal" indication even if a fertility specialist would have declared your levels higher than normal. The timing for FSH testing is crucial. Because FSH levels vary throughout the menstrual cycle, the normal range varies by day.
For basic fertility testing and to evaluate ovarian reserves, you need to have the blood test on day 3 of your menstrual cycle day 1 is the day your period begins.
However, most doctors are OK with the test being done on any day between days 2 to 4. FSH levels may also be checked at another time during the menstrual cycle, but this isn't a common approach, as results may not be as accurate. One reason why FSH testing is considered less useful than other ovarian reserve testing methods is the requirement that it has to be tested at a particular time.
Also, FSH levels can vary not only throughout the menstrual cycle but also from cycle to cycle. You can get a normal test value one month and an abnormal test value the next. Sometimes FSH levels are normal, but day 3 estradiol levels are abnormally high. If your estradiol is high, but your FSH levels are normal, you may still have poor ovarian reserves. When estrogen levels are high, the body lowers FSH in response. A normal range will vary between labs, as a normal value at one clinic may be considered abnormally high in another.
Speak to your doctor for an accurate interpretation. Additionally, a comparison with your LH and estrogen levels specifically estradiol, or E2 is required to get the entire picture. Sometimes, women want their FSH levels tested in order to get an idea of whether they should start trying to have a baby soon or if they have more time.
One study found that women could have normal FSH levels well past the age that difficulty getting pregnant would begin based on age. Day 3 FSH level testing is only one way to measure ovarian reserves. You should tell your doctor about any types of birth control you use, such as the pill, an intrauterine device, or the patch, because this may play a role in your test results. You should also discuss any existing medical disorders with your doctor, such as the following:.
FSH levels vary based on gender and age. They also vary depending on where a woman is in her monthly cycle. Each lab has a slightly different reference range. You should discuss your results with your doctor. An increase in FSH may also indicate a reduction in the production of good quality eggs and embryos for fertilization. A common reason for this is your age. As you age, your fertility starts to decline and fewer eggs mature in your ovaries. How the Test is Performed A blood sample is needed.
How to Prepare for the Test If you are a woman of childbearing age, your health care provider may want you to have the test done on certain days of your menstrual cycle. How the Test will Feel When the needle is inserted to draw blood, some people feel moderate pain. The test is used to help diagnose or evaluate: Menopause Women who have polycystic ovary syndrome , ovarian cysts Abnormal vaginal or menstrual bleeding Problems becoming pregnant, or infertility In men, FSH stimulates production of sperm.
The test is used to help diagnose or evaluate: Problems becoming pregnant, or infertility Men who do not have testicles or whose testicles are underdeveloped In children, FSH is involved with the development of sexual features. The test is ordered for children: Who develop sexual features at a very young age Who are delayed in starting puberty. Male: Before puberty - 0 to 5.
What Abnormal Results Mean High FSH levels in women may be present: During or after menopause, including premature menopause When receiving hormone therapy Due to certain types of tumor in the pituitary gland Due to Turner syndrome Low FSH levels in women may be present due to: Being very underweight or having had recent rapid weight loss Not producing eggs not ovulating Parts of the brain the pituitary gland or hypothalamus not producing normal amounts of some or all of its hormones Pregnancy High FSH levels in men may mean the testicles are not functioning correctly due to: Advancing age male menopause Damage to testicles caused by alcohol abuse, chemotherapy, or radiation Problems with genes, such as Klinefelter syndrome Treatment with hormones Certain tumors in the pituitary gland Low FSH levels in men may mean parts of the brain the pituitary gland or hypothalamus do not produce normal amounts of some or all of its hormones.
High FSH levels in boys or girls may mean that puberty is about to start. Risks There is little risk involved with having your blood taken. Premature ovarian failure. My FSH level is normal, so that factor is definitely not the problem. This is for informational purposes only and does not constitute medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified health provider with any questions you may have regarding a medical condition.
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