Editing Miscarriage (section)

===Non-modifiable risk factors===
Preventing a miscarriage in subsequent pregnancies may be enhanced with assessments of:
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* Immune status<ref name="CarpSelmi2012" /><ref name=":3" />
* Chemical and [[occupational exposure]]s{{sfn|Hoffman|page=272|}}
* Anatomical defects{{sfn|Hoffman|page=181|}}<ref name="auto7"/>
* [[Pre-existing disease in pregnancy|Pre-existing]] or acquired disease in pregnancy{{sfn|Hoffman|page=174|}}<ref name="LisRowhani-Rahbar2015"/>
** Polycystic ovary syndrome<ref>{{cite journal | vauthors = Boomsma CM, Fauser BC, Macklon NS | title = Pregnancy complications in women with polycystic ovary syndrome | journal = Seminars in Reproductive Medicine | volume = 26 | issue = 1 | pages = 72–84 | date = January 2008 | pmid = 18181085 | doi = 10.1055/s-2007-992927 | s2cid = 260316768 }}</ref><ref name=metformin /><ref name=Khattab /><ref name=Acta /><ref name="RCOG-PCOS" />
* Previous exposure to chemotherapy and radiation
* Medications{{sfn|Hoffman|page=172|}}<ref name="Ross LE 436–443"/><ref name="auto3"/><ref name="auto4"/><ref name="auto5"/><ref name="auto6"/>
* Surgical history{{sfn|Hoffman|pages=172–173|}}
* Endocrine disorders{{sfn|Hoffman|page=173|}}<ref name="auto2">{{cite journal | vauthors = Mills JL, Simpson JL, Driscoll SG, Jovanovic-Peterson L, Van Allen M, Aarons JH, Metzger B, Bieber FR, Knopp RH, Holmes LB | title = Incidence of spontaneous abortion among normal women and insulin-dependent diabetic women whose pregnancies were identified within 21 days of conception | journal = The New England Journal of Medicine | volume = 319 | issue = 25 | pages = 1617–23 | date = December 1988 | pmid = 3200277 | doi = 10.1056/NEJM198812223192501 }}</ref>{{Update inline|date=September 2017}}
* Genetic abnormalities{{sfn|Hoffman|page=181–182|}}<ref name="auto7"/>
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