Adenomyosis is a benign gynecological disease observed in women in their reproductive age. Recent studies have shown that adenomyosis might be a relevant factor for infertility, either impairing implantation or leading to early miscarriage. However, conservative treatment of infertility related to adenomyosis is still unclear. This study systematically reviews the literature for the reproductive outcomes of the available conservative treatments for patients with adenomyosis-associated infertility. We conducted a search in PubMed/Medline for studies in English published in the last 7 years and included 16 studies. Six studies evaluated surgical treatments of adenomyosis. When considering only spontaneous pregnancies, the overall clinical pregnancy rate was very low (18.2%). However, when using GnRH analogues for 24 weeks after surgery, the pooled spontaneous pregnancy rate was higher (40.7% vs 15.0%; P = .002). No significant difference was observed in the other outcomes. Ten studies evaluated exclusive assisted reproductive techniques for infertility related to adenomyosis and showed that the long stimulation protocol had better outcomes compared to short stimulation protocol in pregnancy rate (43.3% vs 31.8%; P = .0001), live birth (43.0% vs 23.1%; P = .005), and miscarriage (18.5% vs 31.1%; P < .0001).
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