Naomi Campbell has spoken to Newsbeat about how a trip to the hospital kept her dreams of being a mother alive.
Naomi Campbell, Erin O'Connor and Jade Parfitt at the launch of Fashion For Relief
The model was talking at the Natural History Museum last night at the launch of her latest charity drive.
With the help of her A-list friends she's planning a special show as part of this month's London Fashion Week to raise money for the White Ribbon Alliance.
The organisation raises money for families of women who die during childbirth.
White Ribbon Alliance
Launched in 1999
Raises awareness of the need to make pregnancy and childbirth safe
Has members in 91 countries
Works in developing as well as developed countries
The 38-year-old said it's a charity close to her heart.
She explained: "I was in hospital in March, when we thought it was just a cyst. I was opened up and they realised it was more."
She didn't go into details but said the discovery could have prevented her having children.
The operation was a success and Naomi told Newsbeat she would now love to be a mum.
She said: "I'm all clear, so for me the White Ribbon Alliance is close to my heart because I was not able to have children up until March."
In the past Campbell has used New York and London Fashion weeks to raise money for Hurricane Katrina and UK flood victims.
The Streatham-born model said a trip to Downing Street and a meeting with Sarah Brown - wife of PM Gordon Brown - led to the pair organising the show.
Naomi Campbell takes to the runway in Texas
Campbell said: "She's going to the United Nations with this and loads of brands want to get involved."
Rio Ferdinand, P Diddy and Beyonce have all helped Naomi out in the past by appearing on the catwalk. So who's she lining up for this year?
She said: "I don't like saying names because then there's no surprises. What makes it fun is that you don't know who's coming down the runway."
The star also laughed off claims that she takes part in charity events to counteract the negative press she gets.
She said: "I've been doing charity since 1993 - it's not for public adulation. Whether I had the BA disaster or not I would have still done this anyway."
Fashion for Relief, featuring designers Jaeger, Alexander McQueen, Dolce and Gabbana and Vivienne Westwood, will take place at London Fashion Week on 17 September.