Infertility treatment ranges from oral medications and lifestyle changes to advanced procedures like IVF, and the right approach depends on the underlying cause. About 85% of infertile couples have an identifiable physical explanation, most commonly ovulation problems, sperm-related issues, or blocked fallopian tubes. The remaining 15% are classified as “unexplained infertility.” Treatment typically starts with the least invasive option and escalates from there.
Finding the Cause Comes First
Infertility is defined as failure to conceive after 12 months of regular unprotected intercourse. If you’re over 35, most specialists recommend starting an evaluation after just 6 months. Women over 40 should seek evaluation right away.
Both partners are tested at the same time. For women, the workup typically includes blood tests to check thyroid function, prolactin levels, and ovarian reserve (a measure of remaining egg supply). A hysterosalpingogram, which is an X-ray that uses dye to check whether the fallopian tubes are open, is a standard part of the evaluation. Ultrasound is used to look at the uterus and ovaries for fibroids, polyps, cysts, or signs of endometriosis.
For men, the primary test is a semen analysis, which evaluates sperm count, movement, and shape. If the sperm count is very low (under 10 million per milliliter), additional hormone testing and genetic screening may follow. Because multiple factors often contribute at the same time, testing both partners concurrently avoids months of delay.
Ovulation Medications
When irregular or absent ovulation is the problem, oral medications are the first-line treatment. The two most commonly prescribed are clomiphene citrate and letrozole, both taken for five days early in the menstrual cycle. They work by temporarily lowering estrogen signals to the brain, which triggers the body to produce more of the hormones that stimulate egg development. Ovulation typically occurs 5 to 10 days after the last pill.
Letrozole tends to produce one or two mature follicles per cycle because it allows the body’s normal feedback loop to kick in and limit how many eggs develop. Clomiphene can stimulate more follicles, which slightly increases the chance of multiples. If the starting dose doesn’t trigger ovulation, your doctor will increase it for the next cycle. Letrozole is usually started at 2.5 mg daily with a maximum of 7.5 mg, while clomiphene starts at 50 mg with a ceiling of 250 mg. These medications are inexpensive relative to other fertility treatments and are often the starting point for couples with unexplained infertility as well.
Intrauterine Insemination (IUI)
IUI involves placing washed, concentrated sperm directly into the uterus around the time of ovulation. It’s commonly used for mild male factor infertility, cervical issues, or unexplained infertility, and is often paired with ovulation-inducing medications to improve timing and egg production.
Per-cycle pregnancy rates for IUI are modest. A large European analysis of over 175,000 IUI cycles found an average pregnancy rate of about 9% per cycle, with individual clinics ranging from 4% to 13%. Repeated cycles improve the odds: couples who go through multiple rounds reach a cumulative pregnancy rate around 19%. Women with ovulation-related infertility tend to have better IUI outcomes than those with endometriosis or tubal problems. The cost per cycle ranges from $250 to $4,000, making it a reasonable intermediate step before moving to IVF.
In Vitro Fertilization (IVF)
IVF is the most effective fertility treatment available and is used when other approaches have failed or when the diagnosis points to a problem that simpler methods can’t overcome, such as blocked tubes, severe male factor infertility, or advanced maternal age.
A standard IVF cycle takes roughly two to three weeks of active treatment. It begins with daily hormone injections to stimulate the ovaries into producing multiple eggs instead of the usual one. During this phase, you’ll have frequent ultrasounds and blood draws to monitor follicle growth. When the eggs are mature, a trigger injection is given, and egg retrieval is performed 34 to 36 hours later under light sedation. The eggs are fertilized in the lab, and embryos are cultured for five to seven days until they reach the blastocyst stage. One embryo is then transferred to the uterus, with any remaining high-quality embryos frozen for future use.
Success Rates by Age
Age is the single biggest factor affecting IVF outcomes. For women 35 and under, the live birth rate per fresh cycle is approximately 37%. For women 36 to 39, it drops to around 30% in the first cycle and declines further with subsequent attempts. For women 40 and older, the per-cycle live birth rate falls sharply to roughly 3% to 13%, depending on the cycle. These numbers reflect individual cycle outcomes. Cumulative success over multiple cycles is higher, particularly for younger women whose per-cycle rates hold relatively steady.
What IVF Costs
An initial IVF cycle typically costs $12,000 to $15,000, plus $1,500 to $6,000 for medications. Subsequent cycles using frozen embryos are less expensive, generally $4,000 to $7,000 per cycle. Insurance coverage varies widely by state and employer, so it’s worth checking your plan before starting.
Surgery for Structural Problems
When infertility is caused by a physical abnormality, surgery can sometimes restore fertility without the need for IVF. The most common surgical targets are endometriosis, uterine fibroids or polyps, and tubal blockages.
Endometriosis affects anywhere from 5% to 50% of women with infertility. Laparoscopic surgery aims to remove or destroy all visible endometrial tissue and restore normal anatomy. Complete removal of endometriosis, regardless of the technique used, gives patients about 2.2 times the chance of conceiving compared to incomplete treatment. In about 90% of cases, surgeons are able to fully normalize pelvic anatomy by the end of the procedure. Uterine polyps and fibroids that distort the uterine cavity can be removed through minimally invasive procedures, often done through the cervix without abdominal incisions.
Treating Male Factor Infertility
Male factors contribute to infertility in a significant portion of couples. A varicocele, which is an enlarged vein in the scrotum that raises testicular temperature, is one of the most treatable causes. Most specialists prefer microsurgical repair through a small incision below the groin, which allows preservation of the testicular artery and lymphatic vessels using high-powered magnification. The recovery is relatively quick, and successful repair can sometimes produce enough improvement in sperm quality that couples can conceive naturally or through IUI rather than needing IVF.
When sperm counts are extremely low or sperm are absent from the ejaculate, a technique called ICSI (intracytoplasmic sperm injection) can be used during IVF. A single sperm is injected directly into each egg. In cases where no sperm are present in the ejaculate, sperm can be surgically retrieved directly from the testicle. Fertilization and pregnancy rates are higher with fresh ejaculated sperm than with surgically retrieved sperm, which is one reason varicocele repair is worth considering before jumping to more advanced procedures.
Donor Eggs, Embryos, and Surrogacy
When a woman’s own eggs are no longer viable, typically due to age, premature ovarian failure, or genetic concerns, donor eggs offer a path forward. Because success rates with donor eggs are tied to the donor’s age rather than the recipient’s, this option dramatically improves outcomes for women over 40. Donor embryos are another possibility, often more affordable than using fresh donor eggs.
Gestational surrogacy, where another person carries the pregnancy, is recommended for women without a functioning uterus, those with uterine conditions like extensive fibroids or scarring, women with medical conditions that make pregnancy dangerous, and those with a history of recurrent pregnancy loss. It’s also a primary option for male same-sex couples. The intended parents’ eggs and sperm (or donor gametes) are used to create embryos through IVF, and one is transferred to the surrogate.
Lifestyle Changes That Move the Needle
Lifestyle factors have a measurable impact on both natural conception and treatment success. Women with a BMI over 30 have significantly lower live birth rates after IVF compared to women in the healthy weight range of 18.5 to 24.9. Reaching a healthier weight before starting treatment can genuinely improve your odds.
Smoking impairs ovarian response, fertilization rates, and implantation. The risk of miscarriage increases by an estimated 1% for every cigarette smoked per day. Alcohol consumption above 84 grams per week (roughly six standard drinks) reduces the chance of pregnancy after fertility treatment compared to not drinking at all. Marijuana use is associated with fewer eggs retrieved during IVF and lower success rates overall.
Supplements for Egg Quality
CoQ10 is the best-studied supplement for female fertility. It’s an antioxidant naturally present in cells that plays a role in energy production, and levels decline with age. Clinical studies show that supplementation improves ovarian response and embryo quality, particularly in women with diminished ovarian reserve or those over 35.
The dosing depends on the situation. For women with normal ovarian reserve preparing for IVF, 200 mg daily for 30 to 35 days before starting stimulation is a common recommendation. For women with diminished ovarian reserve, 600 mg daily for 60 days has been shown to improve how the ovaries respond to stimulation hormones. CoQ10 is generally well tolerated and widely available over the counter, though it’s worth discussing with your fertility specialist to ensure it fits your treatment timeline.