The ominous association between severe endometriosis, in-vitro fertilisation, and placenta praevia : Raising awareness, limiting risks, informing women

Endometriosis is associated with several adverse pregnancy outcomes.(1) The most severe maternal complications are spontaneous haemoperitoneum in the second half of pregnancy and placenta praevia.(1) Spontaneous haemoperitoneum, mostly associated with endometriosis infiltrating the broad and uterosacral ligaments and the Douglas pouch, is a potentially fatal but rare event. Placenta praevia is more common,(1-3) and it is important to define its incidence, the association with different lesion types, the impact of additional risk factors, the potential obstetrical consequences, and the information that women should receive.