Results
Among 91 singleton pregnancies with adenomyosis, 12 pregnancies (13.2%) presented with pain at the adenomyosis site. In total, 5 of the 12 pregnancies (41.7%) developed preeclampsia, which resulted in preterm delivery. The incidence of preeclampsia and preterm delivery was higher in those who experienced pain than in those without (41.7% vs. 13.9%;p <0.05, and 66.7% vs. 31.7%; p <0.05, respectively). Among women with pain during pregnancy, the maximum C-reactive protein level was significantly higher in women who developed preeclampsia than in those without (5.45 vs. 0.12 mg/dL,p <0.05).