Now we know why Sharon Osbourne was really M.I.A. from "The Talk": She was dealing with complications from her breast implants.

"One morning I woke up and one of my boobies was kind of much longer than the other," she said today on air. "So I'm like looking, thinking, this isn't right."

Sharon says her doctor told her one of her implants had "leaked into the wall of my stomach" so she had them removed. "This is all me," she says of her chest these days ... though admits she had "a bit of lady work done downstairs" before returning to the show. TMI alert!

Osbourne also talked about her son Jack getting engaged to Lisa Stelley, saying "I like her so much because my son absolutely adores her. He thinks the mooon and the sun all come from Lisa and that makes me feel good."

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