Christina Applegate reveals she has been diagnosed with multiple sclerosis

Christina Applegate has revealed she has been diagnosed with multiple sclerosis.

The 49-year-old Married... with Children actress took to Twitter to reveal the news to her fans.

"Hi friends. A few months ago I was diagnosed with MS," she tweeted.

"It's been a strange journey. But I have been so supported by people that I know who also have this condition. It's been a tough road. But as we all know, the road keeps going. Unless some a****** blocks it."

She added: "As one of my friends that has MS said 'we wake up and take the indicated action.' And that's what I do. So now I ask for privacy. As I go through this thing. Thank you xo."

Multiple sclerosis is a condition of the central nervous system, interfering with nerve impulses within the brain, spinal cord and optic nerves.

It's not the first health battle Applegate has faced. In 2008 she had breast cancer and underwent surgery to have a double mastectomy.

Other stars who have been open about living with MS include Selma Blair, Jamie Lynn Sigler, and Jack Osbourne.