Conclusion Letrozole has more advantage than clomiphene citrate in ovulation treatment of infertile women.It is expected to replace clomiphene citrate as a first-line drug to induce ovulation.

• 结论来曲唑用于不孕妇女的促排卵治疗优于氯米芬，将来有可能替代氯米芬作为一线的诱发排卵药物。