Conclusion
Our study has demonstrated the prevalence of ovarian and deep
endometriosis on ultrasound scans in women attending for early pregnancy
assessment. Half of the women with evidence of endometriosis were
asymptomatic and the diagnosis was made for the first time during
pregnancy. In view of our findings, we propose that ultrasound may be a
useful tool for the detection of endometriosis and to identify pregnant
women who may benefit from specialist antenatal care. Further work is
needed to determine whether women with a new first trimester ultrasound
diagnosis of deep endometriosis are also at increased risk of adverse
pregnancy outcomes.