Scientists at Oregon Health & Science University have achieved a remarkable breakthrough: transforming skin cells into functional human eggs under laboratory conditions. This innovation opens up possibilities for women experiencing infertility due to age or medical treatments.

The method involves transferring the nucleus of a skin cell into a donated egg cell that has had its nucleus removed, and then inducing the necessary chromosomal adjustments. Although it is still a “proof of concept,” researchers have managed to develop some of these eggs to early embryonic stages.

Despite the progress, scientists acknowledge the low efficiency (less than 10%) and the genetic risks associated with incorrect chromosomes. The path to safe clinical application will be long (possibly a decade or more).

Ethics and regulation will be central themes: how to control who has access? What are the long-term effects? Meanwhile, this advance represents a ray of hope for many women who believed they had no option.

The column touches on a profoundly feminine theme, but with universal biological, social, and ethical implications: the power of science to redefine biological boundaries.