Context

The introduction of a cervical screening programme has reduced the overall mortality rate from cervical cancer by 60% in the UK, mainly through pre-emptive treatment of the precursor lesion, cervical intraepithelial neoplasia (CIN).1 ,2 Each year, 22 430 women will have excisional or ablative treatments for CIN and many of these women will be of reproductive age.2 Previous studies have reported an increased risk of preterm labour (<37 weeks) and lower birth weight (<2500 g) following excisional treatments for CIN.3 However, there is limited data relating to the effects on conception and first and second trimester outcomes.