The sharp-tounged and perpetually expressionless Joan Rivers admitted to what many have already surmised—she's had an incredible amount of plastic surgery. 

The 78-year-old recently revealed she's had a total of 739 surgical procedures. Rivers even made light of her unhealthy addiction saying, "Every weekend I just go in and I do something new. I get a 10th one free. It's a little like coffee you just keep going."

Melissa Rivers, who stars in the WE reality show Joan & Melissa: Joan Knows Best  alongside her mother, has expressed her disapproval of her mother's affinity for going under the knife. "At one point I start to think the risk outweighs the reward, so I wanted my mom to know how I felt about it and I think I made myself fairly clear," Melissa said. 

Well, that's good to know. We always assumed Melissa would follow in the steps of her surgery-obsessed mother, and peers like Heidi Montag. Just say no to the knife, Melissa!

[via Daily Telegraph]