Fertility Treatment Options Compared: IUI, IVF, and More

Updated March 2026 · By the FertilityCalcs Team

Choosing a fertility treatment can feel overwhelming when you are faced with medical terminology, varying success rates, and a wide range of costs. Each treatment option is suited to different diagnoses, ages, and situations. This guide provides a clear comparison of the most common fertility treatments to help you have an informed conversation with your reproductive endocrinologist.

Intrauterine Insemination (IUI)

IUI is the least invasive fertility treatment and is often the first step for couples with unexplained infertility, mild male factor infertility, or cervical factor issues. The procedure involves placing washed and concentrated sperm directly into the uterus around the time of ovulation. IUI can be done with or without ovulation-stimulating medications.

Success rates for IUI range from 10 to 20 percent per cycle, depending on the diagnosis, age, and whether medications are used. Most doctors recommend trying 3 to 6 IUI cycles before moving to IVF. A single IUI cycle costs $500 to $2,500, making it significantly more affordable than IVF as a starting point.

Pro tip: Medicated IUI cycles (using Clomid or letrozole) have roughly double the success rate of unmedicated cycles and add only $50-$200 in medication costs.

In Vitro Fertilization (IVF)

IVF is the most effective fertility treatment available. It involves stimulating the ovaries with injectable medications, retrieving eggs under light sedation, fertilizing them in the lab, culturing embryos for 3 to 5 days, and transferring one or more embryos to the uterus. The entire process takes about 4 to 6 weeks per cycle.

IVF success rates are significantly higher than other treatments: 40 to 50 percent per cycle for women under 35, declining to about 10 to 15 percent for women over 42. IVF is recommended for blocked fallopian tubes, severe male factor infertility, advanced maternal age, failed IUI cycles, and genetic screening needs.

Pro tip: If you are over 38, many reproductive endocrinologists recommend proceeding directly to IVF rather than spending months on IUI, since success rates decline with each passing month at advanced maternal age.

Mini IVF and Natural Cycle IVF

Mini IVF uses lower doses of stimulation medications or oral medications like Clomid, producing fewer eggs per cycle but at a much lower cost. Natural cycle IVF uses no stimulation at all, relying on the single egg produced naturally each month. These approaches are gentler on the body and cost $5,000 to $8,000 per cycle.

The tradeoff is lower per-cycle success rates of 15 to 25 percent for mini IVF and 8 to 15 percent for natural cycle IVF. However, some patients prefer these approaches because of reduced side effects, lower medication costs, and the philosophical appeal of a more natural process. They can also be a good option for poor responders who produce few eggs even with high-dose stimulation.

Pro tip: Calculate the cost per live birth, not just cost per cycle. If mini IVF at $7,000 has a 20% success rate, the expected cost per success is $35,000 versus $37,500 for standard IVF at $15,000 with 40% success.

Donor Eggs and Donor Sperm

Donor eggs dramatically improve success rates for women with diminished ovarian reserve, poor egg quality, or advanced age. Using eggs from a young donor, success rates reach 50 to 65 percent per transfer regardless of the recipient age. Fresh donor egg cycles cost $25,000 to $40,000 including donor compensation, while frozen donor egg banks offer cycles for $15,000 to $25,000.

Donor sperm is used by single women, same-sex female couples, and couples with severe male factor infertility. Sperm bank vials cost $500 to $1,000 each, and the sperm can be used with IUI or IVF. Choosing a known donor involves legal agreements and additional screening costs. Both donor egg and donor sperm processes involve careful consideration of genetic, emotional, and legal factors.

Pro tip: Frozen donor egg banks have made donor egg IVF significantly more accessible and affordable. Success rates with frozen donor eggs now approach those of fresh cycles at many reputable banks.

Making Your Treatment Decision

The right treatment depends on your specific diagnosis, age, timeline, budget, and emotional readiness. Start by getting a thorough fertility workup for both partners: hormone levels, semen analysis, ultrasound, and hysterosalpingogram. The results will guide your doctor recommendation.

Consider both per-cycle costs and cumulative costs to achieve pregnancy. Three IUI cycles at $2,000 each cost $6,000 total for a cumulative success rate of about 30 to 45 percent. One IVF cycle at $15,000 offers 40 to 50 percent success for patients under 35. The time factor matters too: spending 6 months on IUI before moving to IVF costs months that matter at advanced maternal age.

Pro tip: Ask your doctor to lay out a complete treatment plan with decision points. Knowing when to escalate from IUI to IVF before you start prevents emotional decision-making under stress.

Frequently Asked Questions

Should I try IUI before IVF?

It depends on your diagnosis and age. For unexplained infertility under age 38 with open tubes and adequate sperm, 3 IUI cycles is a reasonable first step. For blocked tubes, severe male factor, or advanced age, IVF is usually recommended as the first-line treatment.

What is the most effective fertility treatment?

IVF has the highest per-cycle success rate (40-50% for patients under 35). Donor egg IVF has even higher rates (50-65%) for patients with egg quality issues. The most effective option for you depends on your specific diagnosis.

How do I know when to move from IUI to IVF?

Most reproductive endocrinologists recommend moving to IVF after 3-6 unsuccessful IUI cycles. Some recommend moving sooner if you are over 38, have diminished ovarian reserve, or if your IUI response has been poor.

Can fertility medications alone help me get pregnant?

Yes. Ovulation-inducing medications like Clomid and letrozole can help women who do not ovulate regularly. Combined with timed intercourse, these medications have success rates of 10-15% per cycle for appropriate candidates, at a cost of just $50-$200 per month.

What fertility treatment is best for women over 40?

IVF is generally recommended for women over 40 due to declining egg quality and quantity. PGT genetic testing helps identify chromosomally normal embryos. For women over 42-43, donor eggs may be recommended given very low success rates with own eggs.