Intrauterine Insemination (IUI) Success Rates & Treatment Guide

Intrauterine insemination (IUI) treats unexplained infertility and mild sperm abnormalities by placing concentrated sperm directly into the uterus. Sperm preparation involves ‘washing’ to isolate mobile, viable sperm. Success rates average 10% per cycle, with most couples achieving pregnancy within 3-5 attempts.

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Key Takeaways

IUI Success Rates by Age and Diagnosis

Live birth success rates for IUI are approximately 10% per cycle. Outcomes correlate strongly with patient age, underlying infertility causes, and whether ovulation induction medications are used alongside the procedure.

Sperm Preparation Process for IUI

The andrology lab performs ‘sperm washing’ to concentrate highly motile, normally shaped sperm into a small volume. This purification step removes seminal fluid and non-viable cells to optimize fertilization potential.

IUI Procedure and Discomfort Levels

A flexible catheter delivers prepared sperm into the uterine cavity. Discomfort is comparable to a pap smear, with post-procedure normal activity resumption allowed. Same-day intercourse is often recommended.

Optimal Number of IUI Cycles

Most couples achieve pregnancy within 3-5 IUI cycles. Fewer patients conceive beyond this range, prompting consideration of alternatives like IVF if multiple attempts fail.

When to Transition to IVF Treatment

After 3-5 unsuccessful IUI cycles, consult your physician about switching to IVF. This recommendation applies particularly to patients over 35 or those with severe infertility factors.

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