Ovulation triggers in anovulatory women undergoing ovulation induction.

Anovulation is a common cause for infertility. Drugs used to treat anovulation include selective estrogen receptor modulators, aromatase inhibitors and gonadotrophins. Ovulation triggers are used with these drugs, in order to time intercourse. Ovulation triggers without reliable evidence of oocyte maturity could be inappropriately timed, increase costs and psychological stress. This review evaluates different ovulation triggers used when treating anovulatory women with ovulation inducing agents compared to spontaneous ovulation.