Prior to the surgery for her double mastectomy Sharon Osbourne also learned her breast implants had leaked into her stomach wall, which has now put her off cosmetic surgery.
"Sometimes I'll see a photo and I'll think, 'My face looks plastic'; it can look so unnatural from certain angles. Now I am definitely, definitely done," Osbourne told Hello! Magazine.
"You can't buy your youth back, no matter how much money you've got. I won't be going under the knife again."
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Scientists are researching a blood test which can quickly detect colon, lung, breast, stomach and endometrial cancer.
Transport bosses are said to be in "active discussions" with the company to encourage it to extend its pilot scheme to the UK's capital.
Reports suggest the 67-year-old is expected to be named as one of the hosts of the new series within days.