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Seminal oxidative stress is considered to cause sperm DNA damage, thus affecting the functional capacity of the sperm. Multiple lines of evidence support an association between elevated seminal reactive oxygen species (ROS) and infertility. In the setting of assisted reproduction various factors in the in vitro environment, differing from the in vivo environment, may exacerbate oxidative stress. Furthermore, seminal ROS levels have been found to be higher in the male partners of couple\u2019s affected by both spontaneous and recurrent pregnancy loss. There are several methods by which to assess ROS levels however they are costly, inconsistent and their incorporation into clinical practice is unclear. The value of ROS assessment lies in the ability to plan targeted therapies to improve pregnancy and live birth rates. As such, further robust study is required before firm conclusions can be made to inform clinical practice. We aim to review the available evidence regarding the role of seminal ROS in infertility and pregnancy loss.<\/jats:p>","DOI":"10.1007\/s00345-023-04472-2","type":"journal-article","created":{"date-parts":[[2023,7,15]],"date-time":"2023-07-15T10:02:22Z","timestamp":1689415342000},"page":"3257-3265","update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":9,"title":["The role of seminal reactive oxygen species assessment in the setting of infertility and early pregnancy loss"],"prefix":"10.1007","volume":"41","author":[{"given":"Rhianna","family":"Davies","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Suks","family":"Minhas","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Channa N.","family":"Jayasena","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"297","published-online":{"date-parts":[[2023,7,15]]},"reference":[{"key":"4472_CR1","doi-asserted-by":"publisher","first-page":"873","DOI":"10.1016\/S0015-0282(02)03105-9","volume":"77","author":"ID Sharlip","year":"2002","unstructured":"Sharlip ID, Jarow JP, Belker AM, Lipshultz LI, Sigman M, Thomas AJ et al (2002) Best practice policies for male infertility. 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