LADY GAGA can no longer walk, she confirms.

Gaga, 28, Tweeted the sad news as she canceled three upcoming gigs on her Born This Way tour.

"I've been hiding a show injury and chronic pain for some time now; over the past month it has worsened," Gaga  explained via Twitter.

"I've been praying it would heal.

"I hid it from my staff. I didn't want to disappoint my amazing fans. However, after last night's performance I could not walk and I still can't."

Gaga said she had been diagnosed with a synovitis, a condition sometimes associated with arthritis and lupus, which makes joints tender, swollen, and difficult to move.

Gaga also regretted disappointing her fans.