The 43-year-old former Baywatch actress discovered she had contracted the virus – which attacks the liver – in 2001, after using a shared tattoo needle.
Her condition is now under control thanks to medication, but she is urging anyone who suspects they have hepatitis to get tested.
She told People Magazine: "I've had liver biopsies. I get checked every single year, my doctor told me just keep doing what you're doing. I also have the kind that's easiest to control.”
She added: "There is no cure for it, so the important thing is to encourage people to get tested and not be ashamed.
“People get embarrassed as you get it from blood-to-blood contact, but it's not just junkies who have it."