Intrauterine Insemination (IUI) is one of the simplest and least invasive fertility treatments available. It involves placing specially prepared sperm directly into the uterus around the time of ovulation, giving sperm a head start in reaching the egg. But is IUI the right treatment for you?
How Does IUI Work?
The IUI process involves monitoring the woman’s ovulation cycle (naturally or with mild stimulation medications), preparing the semen sample by washing and concentrating the healthiest sperm, and then inserting the prepared sperm through a thin catheter directly into the uterus. The procedure itself takes only a few minutes and is generally painless.
Who Is IUI Suitable For?
- Couples with unexplained infertility
- Mild male factor infertility (slightly low sperm count or motility)
- Women with ovulation disorders who respond to medication
- Cervical factor infertility (hostile cervical mucus)
- Couples using donor sperm
- Mild endometriosis (Stage I or II)
Success Rates
IUI success rates typically range from 10–20% per cycle, depending on the woman’s age, the cause of infertility, and whether fertility medications are used alongside the procedure. Success rates are higher in younger women and when combined with ovulation-inducing medications. Most fertility specialists recommend trying 3–4 cycles of IUI before considering alternative treatments.
When IUI May Not Be Appropriate
- Blocked fallopian tubes
- Severe male factor infertility
- Advanced endometriosis
- Women over 38–40 years of age (IVF may be more time-efficient)
- After 3–4 failed IUI cycles
IUI vs IVF – Making the Decision
IUI is less invasive, more affordable, and requires less medication than IVF. However, IVF offers significantly higher success rates per cycle. The decision between IUI and IVF should be based on your specific diagnosis, age, duration of infertility, and previous treatment history. Your fertility specialist can help you weigh the pros and cons for your individual situation.
IUI remains an excellent first-line treatment for many couples. If you are considering fertility treatment, a thorough evaluation can help determine whether IUI is the right starting point for your journey to parenthood.