IUI Success Rate — What to Expect
IUI success rates depend on the underlying infertility cause and patient factors — the reported figures are up to 20% per cycle, reaching 30% in the best cases.
The reported numbers
General figure: up to 20% success per cycle. In the best cases — where good sperm, egg, and uterine quality is ensured — the success rate may reach up to 30% per attempt.
How many cycles to try
At least 3–4 cycles of IUI are recommended before considering other options — cumulative success builds across attempts. If IUI does not work after these cycles, more advanced treatment like IVF is the usual next step.
What affects success
Success depends on the infertility cause, sperm quality after preparation, egg quality, uterine condition, and timing precision. Cases of mild male infertility and unexplained infertility often respond well to IUI.
Frequently Asked Questions
What is the IUI success rate?
How many IUI cycles should we try?
Why does IUI fail?
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