The Traitors star and Welsh opera singer Elen Wyn says she is "grateful to have an abnormal anatomy" as it ultimately led to her endometriosis diagnosis.
Appearing on the podcast It's Not JUST a Period!, the 25-year-old from Anglesey said doctors discovered she had only one "abnormally big kidney... two wombs and two cervixes".
The condition, known as uterus didelphys, occurs when the uterus fails to fuse during development in the womb and it affects about 0.3% of women.
This results in a double uterus, which may also have two cervixes and two vaginal canals.