Ayre K, et al. - Researchers sought to determine the prevalence and the correlates of self-harm in pregnancy and the postpartum year (“perinatal self-harm”) via performing a systematic review and meta-analysis. Searching six databases (EMBASE, MEDLINE, PsycINFO, Maternity and Infant Care Database, CINAHL, Cochrane Controlled Register of Trials) from inception through October 31, 2018, they included 39 (reporting 19,191,431 pregnancies) articles. The studies suggested following prevalence ranges: self-harm during pregnancy (14 studies): 0%–2.39% (median = 0.0004%; interquartile range [IQR], 0.0002%–0.18%); self-harm during postpartum year (10 studies): 0%–2.41% (median = 0.17%; IQR, 0.04%–1.05%); self-harm during pregnancy in women with serious mental illness (SMI) (6 studies): 0%–23.78% (median = 2.16%; IQR, 0.26%–7.9%); self-harm during postpartum year in women with SMI (7 studies): 0%–21.9% (median = 7.97%; IQR, 0%–18%). Mental disorder, substance misuse, younger age, being unmarried, and obstetric and neonatal complications were the key correlates of self-harm during pregnancy and the postpartum year. Although rare, when present, perinatal self-harm is associated with adverse obstetric and neonatal outcomes. However, women with SMI frequently exhibit it, though there is limited evidence regarding correlates and outcomes in this population.