The Black Sabbath singer, who has several permanent markings on his body, said that people often get carried away after having their first one.
He explained to The Times: "The trouble with tattoos is they're addictive. I've known girls who start out with a flower on their ankle, and three months later they've got an entire battle scene across their arse.
"When my own daughter got tattoos, I said to her, 'Fashions come and go. One day you may resent what you did to your body'."
Osbourne also admitted that he sometimes regrets having a smiley face tattoo on his knee.
He said: "It's one thing being young and beautiful with a tattoo, another when you're a grandma with a floppy dagger on your arm.
"There are times when even I wake up and look at the smiley face I drew on my knee and think, 'What the f**k did I do that for?' Getting them done hurts like crazy too."