Infertility treatment is any medical intervention designed to help you conceive when pregnancy hasn’t happened on its own. The options range from oral medications that cost a few hundred dollars per cycle to advanced laboratory procedures like IVF, and the right starting point depends on what’s causing the difficulty. Most couples work through treatments in a stepwise fashion, beginning with the simplest and least invasive approach before moving to more complex ones.
Infertility is typically diagnosed after 12 months of regular, unprotected intercourse without a pregnancy. That timeline shortens to six months if the female partner is between 35 and 40, and immediate evaluation is recommended after age 40 or when a known risk factor exists, such as tubal disease, a history of pelvic inflammatory disease, or a previous ectopic pregnancy.
Ovulation-Inducing Medications
For many people, treatment starts with medication. If irregular or absent ovulation is the problem, oral drugs can prompt the ovaries to release an egg on a predictable schedule. Two medications dominate this category. The first is clomiphene citrate, which blocks estrogen receptors in the brain and tricks the body into ramping up the hormonal signals that trigger egg development. The second is letrozole, which temporarily lowers estrogen production to achieve the same result through a slightly different pathway.
Both drugs are taken for five days early in the menstrual cycle. Ovulation rates with clomiphene run between 60 and 85 percent, though the pregnancy rate per cycle is lower, around 15 to 20 percent, because ovulation alone doesn’t guarantee conception. Letrozole produces similar ovulation rates but appears to give a meaningful edge in actual pregnancies. In a head-to-head trial of 220 women with polycystic ovary syndrome (PCOS), letrozole led to a 29 percent pregnancy rate compared to 15.4 percent with clomiphene. That difference has made letrozole the preferred first choice for many reproductive specialists, particularly in PCOS patients.
If the starting dose doesn’t trigger ovulation, your doctor will typically increase it in the next cycle. Most women who respond do so within two or three dose adjustments.
Intrauterine Insemination (IUI)
IUI is often the next step when medication alone isn’t enough, or when sperm quality is mildly reduced. The procedure is straightforward: a sperm sample is collected, washed and concentrated in a lab, then placed directly into the uterus through a thin catheter around the time of ovulation. The goal is to shorten the distance sperm need to travel and increase the number that reach the egg.
Success rates are modest. A large study of over 1,400 IUI cycles found a pregnancy rate of about 11 percent per cycle, with a cumulative rate of roughly 19 percent after multiple attempts. Your individual odds depend heavily on a few key factors. Age under 35, healthy ovarian reserve, and a good sperm count all improve the picture. Couples with all favorable factors had a cumulative pregnancy probability near 45 percent after three cycles, while those with multiple unfavorable factors saw rates as low as 5 percent. Most clinicians recommend trying three to four IUI cycles before considering IVF.
In Vitro Fertilization (IVF)
IVF is the most effective and most involved fertility treatment. It bypasses many of the biological barriers to conception by combining eggs and sperm in a laboratory, then transferring the resulting embryo to the uterus. The process unfolds in five stages over roughly two to three weeks.
First, you take injectable hormones for about 8 to 14 days to stimulate the ovaries into producing multiple eggs instead of the usual one. Your clinic monitors follicle growth with ultrasounds and blood tests during this phase. Second, the eggs are retrieved through a minor procedure using a thin needle guided by ultrasound. It’s done under sedation, and any cramping afterward typically resolves within a day.
Third, the eggs are combined with sperm in the lab. Fertilization usually occurs within a few hours. If sperm quality is very low, or if previous IVF cycles had poor fertilization, a single sperm can be injected directly into each egg, a technique called ICSI. Fourth, the fertilized eggs develop in a controlled environment for about five days until they reach the embryo stage. Lab staff monitor them daily to assess quality. Fifth, one or sometimes two embryos are transferred to the uterus using a catheter, a process that takes only a few minutes and doesn’t require sedation.
Any remaining high-quality embryos can be frozen for future use, which means you may not need to repeat the stimulation and retrieval steps if the first transfer doesn’t work or if you want another child later.
Genetic Testing of Embryos
Before an embryo is transferred, it can be screened for genetic problems. Preimplantation genetic testing comes in two main forms. The first checks for chromosome abnormalities, which are a leading cause of miscarriage and failed implantation, especially as maternal age increases. The second screens for specific inherited conditions like cystic fibrosis, fragile X syndrome, or muscular dystrophy when one or both parents are known carriers.
Testing involves removing a few cells from the outer layer of the embryo around day five of development. Only embryos that test normal are transferred. This doesn’t guarantee pregnancy, but it reduces the chance of miscarriage from chromosomal causes and virtually eliminates the risk of passing on the tested genetic condition.
Treating Male Factor Infertility
Male factors contribute to roughly half of all infertility cases, either alone or alongside a female factor. Treatment depends on the specific problem.
A varicocele, which is an enlarged vein in the scrotum that raises testicular temperature and impairs sperm production, is one of the most common correctable causes. Surgical repair through a small incision can improve sperm counts and quality over the following months. Several repair techniques exist, but microsurgical approaches tend to have the best outcomes with the fewest complications.
When sperm counts are extremely low or absent in the ejaculate, a condition called azoospermia, surgical sperm retrieval becomes necessary. In obstructive cases, where sperm are produced but can’t get out due to a blockage, sperm can be aspirated directly with a needle. In non-obstructive cases, where the testicles produce very little sperm, a procedure called micro-TESE uses a surgical microscope to locate and extract the small pockets of tissue where sperm production is still occurring. Retrieved sperm are then used with ICSI during an IVF cycle.
Surgery for Structural Problems
Some fertility problems stem from physical abnormalities in the reproductive tract. Blocked or damaged fallopian tubes, uterine fibroids that distort the cavity, polyps, scar tissue, and endometriosis can all interfere with conception. Minimally invasive surgery, usually performed through small abdominal incisions or through the cervix, can address many of these issues.
For endometriosis, removing or destroying the abnormal tissue roughly doubles the monthly chance of natural conception, from about 2.4 percent to 4.7 percent. Over a full year, that adds up to a meaningful difference. Surgery also aims to break down adhesions that may be limiting the movement of the fallopian tubes or ovaries. The benefit is clearest when the goal is natural conception. Interestingly, having endometriosis surgery before IVF does not appear to improve IVF outcomes and may even slightly reduce live birth rates, so timing and sequencing matter.
Donor Eggs, Donor Sperm, and Surrogacy
When your own eggs or sperm aren’t viable, donor gametes offer a path forward. Donor eggs are the most common form of third-party reproduction and are particularly relevant for women over 40 whose egg quality has declined significantly. Eggs can come from a frozen egg bank or from a fresh donation cycle where a donor undergoes IVF stimulation specifically for you. The donor eggs are fertilized with the partner’s sperm, and the resulting embryo is transferred to the intended parent’s uterus. Because the eggs come from a younger donor, success rates with donor eggs are generally higher than with a patient’s own eggs at advanced ages.
Donor sperm is used when the male partner has no retrievable sperm or in cases of single parenthood or same-sex couples. It can be used with IUI or IVF depending on the clinical situation.
A gestational carrier, sometimes called a surrogate, is someone who carries the pregnancy for intended parents who cannot carry one themselves, whether due to an absent uterus, serious medical conditions, or repeated pregnancy losses. The carrier has no genetic connection to the baby. Both the carrier and the intended parents undergo extensive medical and psychological screening before the process begins.
Risks to Be Aware Of
Most fertility treatments are safe, but they aren’t risk-free. The most significant concern with any treatment involving ovarian stimulation is ovarian hyperstimulation syndrome (OHSS). In its mild form, OHSS causes bloating, nausea, and discomfort around the ovaries, and it typically resolves within about a week. Severe OHSS is less common but more serious: rapid weight gain (more than two pounds in 24 hours), intense abdominal pain, shortness of breath, decreased urination, and in rare cases, blood clots. If pregnancy occurs during a cycle with OHSS, symptoms can worsen and linger for several weeks.
Multiple pregnancies are another well-known risk. Ovulation medications and IUI increase the chance of twins or higher-order multiples because multiple eggs may be released. IVF clinics have largely addressed this by transferring a single embryo in most cases, but the risk isn’t zero. Twin and triplet pregnancies carry higher rates of preterm birth, low birth weight, and complications for both the parent and babies.
How Age Affects Success
Age is the single most important predictor of fertility treatment success, and it applies primarily to the age of the eggs being used. Women under 35 have the highest success rates across every treatment type. IVF live birth rates per retrieval cycle are roughly 40 to 50 percent in this group. By ages 38 to 40, that figure drops to around 20 to 30 percent. After 42, live birth rates with a woman’s own eggs fall into the single digits.
This decline reflects egg quality, not uterine function. A 43-year-old using eggs from a 25-year-old donor will have success rates comparable to the donor’s age group, not her own. This is why age-based timelines for seeking help exist: starting treatment earlier preserves more options and improves the odds at every step.