An "invasive" procedure that can help infertile females become pregnant should not be pursued by young women wanting to have a child later in life, a doctor has warned.
In an Australian-first procedure, a breast cancer survivor has become pregnant after she was reimplanted with her frozen ovarian tissue, which was removed prior to chemotherapy.
Professor Gabor Kovacs, who worked on the procedure, says it marks a breakthrough for women whose fertility has been threatened by cancer treatment or other diseases.
However, he warns against healthy women using it.
"If you're asking me whether a 30-year-old should be taking part in this technique because she hasn't found Mr Right yet, I would say no," Prof Kovacs told AAP.
"It's an operation to take the tissue, put it back and even then it may not work, so you may have to do IVF," he said.
"It's quite invasive rather than natural, so I would not advocate it for social reasons."
Professor Kovacs, from Monash IVF, said the success rate of the treatment was not yet known.