US doctors are hoping to start offering women vaginal fluid transplants and have set up a programme to screen potential donors.
They believe some women could benefit from a dose of healthy vaginal microbes to protect against an infection called bacterial vaginosis (BV).
The Johns Hopkins University team say they were inspired by the success of faecal or poo transplants.
Although antibiotics can treat BV, it often comes back.
What is BV?
BV is not a sexually transmitted disease, despite being an infection.
It’s quite common and women who have it may notice that they have an unusual discharge that has a strong fishy smell.
The condition is not usually serious, but should be treated because having BV makes women more vulnerable to catching sexually transmitted