IVF is available to a wide range of people, not just those with a specific diagnosis. You may be eligible if you’ve been trying to conceive for 12 months without success (or six months if you’re 35 or older), if you have a known medical condition affecting fertility, if you’re a single person or same-sex couple building a family, or if you carry a genetic condition you don’t want to pass on. Here’s a closer look at each pathway.
Infertility After Trying to Conceive
The most common reason people pursue IVF is straightforward: pregnancy hasn’t happened despite regular, unprotected sex. The general threshold is 12 months of trying for women under 35, and six months for women 35 and older. After that point, a fertility evaluation is typically recommended, and IVF becomes one of several treatment options depending on what the workup reveals.
In many cases, the evaluation finds a clear cause. In roughly 15 to 30 percent of couples, though, no identifiable problem turns up. This is called unexplained infertility. Couples in this category often try less intensive treatments first, like ovulation-stimulating medications or intrauterine insemination, before moving to IVF. But IVF is a well-established option when those approaches don’t work.
Fallopian Tube Problems
IVF was originally developed for women with blocked or damaged fallopian tubes, and it remains one of the clearest indications for the procedure. Because IVF bypasses the tubes entirely (eggs are retrieved directly from the ovaries and fertilized in a lab), it works whether both tubes are blocked, scarred from infection or surgery, or surgically removed.
Women who previously had a tubal ligation (a sterilization procedure) and later want to conceive are also candidates. IVF can be a simpler path than surgical reversal, especially if the original procedure removed a significant portion of the tubes.
Ovulation Disorders and Endometriosis
If you ovulate irregularly or not at all, fewer eggs are available each cycle, which makes natural conception difficult. Conditions like polycystic ovary syndrome are a common example. While ovulation-inducing medications are usually the first step, IVF is an option when those medications don’t lead to pregnancy or when other factors are also present.
Endometriosis, a condition where tissue similar to the uterine lining grows outside the uterus, can impair fertility by damaging the ovaries, fallopian tubes, or the uterine environment itself. Milder cases may respond to less intensive treatments, but moderate to severe endometriosis often makes IVF the most effective route.
Male Factor Infertility
About half of all infertility cases involve a male factor, and IVF (often combined with a technique called ICSI, where a single sperm is injected directly into an egg) can overcome most sperm-related problems. The specific situations where IVF with ICSI is recommended include:
- Low sperm count: A normal concentration is at least 15 million sperm per milliliter. Counts below 5 million per milliliter are considered severe and typically require IVF with ICSI.
- Poor motility: Fewer than 32 percent of sperm moving forward progressively is below normal. Standard IVF generally requires 50,000 to 500,000 motile sperm; below that range, ICSI is necessary.
- Abnormal morphology: When fewer than 4 percent of sperm have a normal shape, fertilization rates with conventional methods drop significantly.
- Absent sperm in the ejaculate: In some cases, sperm can be surgically retrieved directly from the testicle and used for IVF with ICSI, even when none appear in the semen.
Men with very low sperm counts are sometimes tested for Y-chromosome microdeletions, a genetic cause that could be passed to male offspring through IVF. Updated 2024 guidelines from the American Urological Association and the American Society for Reproductive Medicine include revised thresholds for when this testing should be offered.
Genetic Conditions
You don’t need to be infertile to be eligible for IVF. Couples who carry genes for serious inherited diseases can use IVF specifically to screen embryos before transfer. This is called preimplantation genetic testing, and it applies to several situations.
If you or your partner carries a gene for a single-gene disorder like cystic fibrosis, Huntington disease, fragile X syndrome, or sickle cell disease, embryos can be tested so only unaffected ones are transferred. The same technology works for hereditary cancer syndromes, including BRCA-related breast and ovarian cancer and Lynch syndrome. Parents who carry structural chromosome rearrangements (such as translocations or inversions) that raise the risk of miscarriage or chromosomal abnormalities in a child are also candidates.
In rarer cases, IVF with genetic testing has been used to select embryos that are a tissue match for a seriously ill sibling who needs a bone marrow transplant or cord blood transfusion.
Single People and LGBTQ+ Couples
IVF eligibility is not limited to heterosexual married couples. The American Society for Reproductive Medicine’s ethics guidance states that fertility programs should treat all patients equally regardless of marital status, sexual orientation, or gender identity. Roughly a third of U.S. states have laws that explicitly prohibit fertility clinics from denying services based on sexual orientation, and medical offices are generally considered public accommodations under civil rights laws.
In practice, this means single women can pursue IVF using donor sperm, same-sex female couples can use donor sperm with one partner’s eggs (or one partner’s eggs and the other’s uterus), and same-sex male couples can use IVF with an egg donor and a gestational carrier where those services are available. The only basis on which a clinic may ethically withhold services is serious, substantiated concern about a patient’s ability to provide safe care for a child, applied equally to all patients regardless of demographics.
How Age Affects Eligibility
There is no universal age cutoff for IVF, but age is the single strongest predictor of success. Most clinics will treat women into their early to mid-40s using their own eggs, though success rates decline sharply after 40. Using donor eggs removes age as a significant barrier, since success depends more on the egg donor’s age than the recipient’s.
Clinics use blood tests and ultrasound to estimate how many eggs your ovaries are likely to produce in a cycle. One common marker is AMH (anti-Müllerian hormone). Even at very low AMH levels (below 0.16 ng/mL), about one in five women who make it to embryo transfer achieve a live birth, though more than half of cycles at that level get canceled before retrieval due to poor response. The American Society for Reproductive Medicine emphasizes that low ovarian reserve test results alone should not be used to refuse treatment. They’re a counseling tool, not a hard cutoff.
BMI and Weight Requirements
Many IVF clinics set upper BMI limits, primarily because higher BMI increases anesthesia risks during egg retrieval and can reduce the chances of success. In a national survey of U.S. fertility specialists, the average upper BMI limit for IVF was about 40 (which corresponds to roughly 235 pounds for a 5’4″ woman or 280 pounds for a 5’10” man). However, individual clinic policies vary considerably. About 62 percent of clinics with BMI restrictions set their cutoff between 40 and 44, while a smaller number draw the line at 35 to 39 or allow patients with a BMI above 50.
If your BMI is above your clinic’s threshold, you may be asked to lose weight before starting treatment or referred to a clinic with different guidelines. Some clinics offer support programs or referrals to help patients reach a weight where treatment can proceed safely.
When IVF Is a Second Step
For many eligible patients, IVF isn’t the first treatment recommended. Simpler, less expensive options like ovulation medications, intrauterine insemination, or surgery to correct a structural problem are often tried first. IVF typically enters the picture when those approaches haven’t worked after several cycles, when the underlying diagnosis makes less intensive treatment unlikely to succeed, or when time is a factor due to age or declining ovarian reserve. Your fertility specialist will help determine where IVF fits based on your specific situation, but the threshold to qualify is lower than many people expect.