Definition: Oligoovulation is when ovulation occurs infrequently or irregularly. Usually, a woman ovulates, or releases a mature egg once a month, about halfway through her cycle. Oligoovulation is seen in women with irregular cycles, or very long cycles (more then 50 days). This may make it difficult to track your fertile days if trying to conceive.
Oligoovulation
By Nicole Galan, RN, About.com Guide
Updated December 15, 2009
About.com Health's Disease and Condition content is reviewed by the Medical Review Board
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