Difficult embryo transfer

Most embryo transfers are straightforward, quick procedures, but occasionally a transfer is technically more difficult, for example because of the angle or shape of the cervix and uterus, scar tissue, or a full bladder not adequately positioning the uterus. This may mean the clinician uses additional techniques, such as a different catheter, an ultrasound-guided approach, or in rare cases a tenaculum to gently steady the cervix, to complete the transfer successfully. A difficult transfer can cause more discomfort or minor spotting than usual, but is not generally thought to affect the transferred embryo, and does not, on its own, predict whether a pregnancy will occur. If a cervix or uterine shape has previously caused a difficult transfer, clinics often plan ahead, for example with a trial or mock transfer before the actual embryo transfer, to reduce difficulty at the time of the real procedure. Any unusual pain, heavy bleeding, or fever following an embryo transfer should be reported to the treating clinic, so they can assess whether it is related to the procedure or needs separate evaluation.

Also known as: hard embryo transfer, difficult transfer procedure

Last reviewed: 9 September 2026. Written by the Antega Editorial Team. General information only — always follow the advice of your own clinic, doctor or pharmacist.