Wife of legendary rocker and Black Sabbath front man Ozzy Osbourne, Sharon appeared on American chat show The Talk and revealed a shocking memory from over 30 years ago.
Sharon, 64, has three children - Aimee, 33, Kelly, 32 and Jack, 31 - who are known to the public mostly for their antics on the family's hit noughties reality TV show, The Osbournes.
The star has now revealed that there was to be a fourth child, but she sadly suffered a miscarriage at 28 following a savage dog attack.
Sharon recalled how she had travelled home to England to visit her parents, who owned two large dogs - a Doberman Pinscher and a Bernese Mountain Dog.
Speaking on the show, she began to retell the ordeal, 'When I was about, oh my lord, 28, I was attacked by a Doberman Pinscher and a Bernese Mountain Dog.
'They were my parents' and I came into the house, then I had a very high-pitched voice and their ears went like this (up). I walked in the door, I said hello and bang.'
To her shock, the dogs reacted badly to not having seen her for a long time as she was working in the US.
'The Doberman jumped up and head-butted me, that's one of the things that they do - and got me down to the ground and they both attacked me. My mother got them off me, I went to hospital and I didn't know that I was pregnant and eventually lost the baby.'
The music manager described the fear she felt at being attacked by the two animals, 'It's the most frightening thing in the world and time goes in slow motion and fear - I was so fearful I could do nothing. I was like a rag doll.'
Sharon, who is known for speaking candidly about her life, has also opened up about having an abortion, which she believes resulted in three miscarriages.
'I had an abortion at 17 and it was the worst thing I ever did,' she previously shared.
'I went alone. I was terrified. It was full of other young girls, and we were all terrified and looking at each other and nobody was saying a bloody word.
'I howled my way through it, and it was horrible. I would never recommend it to anyone because it comes back to haunt you.'
She added: 'When I tried to have children, I lost three - I think it was because something had happened to my cervix during the abortion.'