According to the Mayo Clinic in the US, the likelihood of vaginal atrophy is higher among women who have been treated for breast cancer.
The good news? Regular orgasms can alleviate symptoms, according to sex therapist Louise Mazanti.
When your partner climaxes, the increase in blood flow acts as a "workout" for her ace of spades, with the increased oxygen to the area reducing the inflammation that can lead to vaginal atrophy.
Want to make sure she's treated well? Check out the 16 new ways to touch her vagina.