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[Management of ovarian cysts: consequences of ovarian surgery on fertility].

Surgery remains an important tool for the management of ovarian cysts. The question is whether patients of reproductive age should be given conservative treatment or undergo unilateral oophorectomy according to infertility risk. The literature is too sparse to conclude, but there are two arguments favoring conservative treatment: i) unilateral ovariectomy may impair residual ovarian function, ii) reduction of ovarian follicular number appears to be associated with increased risk of trisomy 21 in offspring.