Scientists in the United States and United Kingdom say they’ve successfully managed to grow human eggs in a lab for the first time.
The egg cells were developed right from the earliest stages in ovarian tissue all the way to full maturity.
This had previously only ever been done with mouse eggs.
While the breakthrough is huge news for people who might be struggling to start a family, experts in the field have called for caution.
They say there’s a lot more study needed before lab-grown human eggs could safely be fertilized with sperm.
The research was published in the journal Molecular Human Reproduction this week.
In the future, this technology could be used to help cancer patients who want to preserve their fertility while undergoing chemotherapy, improve other fertility treatments, and help doctors get a better understanding of the early stages of human life.