Fluid accumulation of the uterine cavity before embryo transfer: a possible hindrance for implantation.

Accumulation of fluid in the uterine cavity was recorded in three cases during vaginal ultrasound (US) monitoring for in vitro fertilization (IVF) cycles. The three patients had hydrosalpinges and tuboovarian cystic masses. They all had a common complaint of intermittent vaginal discharge. Attempts at aspirating the fluid to empty the cavity was done in two cases but the fluid recollected. This condition possibly renders the uterine cavity hostile to the transferred embryos and careful consideration should be taken to diagnose it.