Sharon Osbourne has three children

Sharon Osbourne has revealed that she underwent a double mastectomy after finding out she has a gene that makes her predisposed to developing breast cancer.

Sharon, 60, visited doctors about a leaking breast implant last year and made the brave decision to have her breasts removed as well as her silicone implants in a 13-hour operation.

'When I went in to see my surgeon about the leaky breast implant, he told me that my leak was so bad that it had leaked into my stomach wall. It was a mess,' says Sharon.

'When I was talking to him I made the decision there and then to have not just the implants removed but both breasts as well. I said: "Just take everything off."'

Sharon describes her breasts now as being 'very small' after they were reconstructed during the surgery.

But the reality star - who's previously battled colon cancer -  is happy and has a 'freedom she didn't feel before'.

'When you carry the breast cancer gene, you have to have mammograms every six months, and it's almost as though you have a ticking time bomb inside you,' Sharon tells Hello!

'I didn't want to live under that cloud - worrying every time I felt a tiny lump and counting down the days until the next mammogram.'

SEE PICTURES Sharon Osbourne at the Golden Globes 2012

SEE PICTURES Sharon Osbourne at the People's Choice Awards 2012

SEE PICTURES Sharon Osbourne at the Bvlgari Save The Children event

Anna Duff