Female fertility
Endometriomas are sometimes called chocolate cysts. They can reduce ovarian reserve, and so can surgery to remove them, so the decision to operate before IVF weighs pain, cyst size, access for egg retrieval and reserve.
Also known as: chocolate cyst, ovarian endometrioma
Related Canada guides
Sources
- Society of Obstetricians and Gynaecologists of Canada (SOGC) patient information
Last reviewed: September 9, 2026. Written by the Antega Editorial Team. General information only — always follow the advice of your own clinic, doctor or pharmacist.