The 31-year-old singing star suffered concussion after her partner Mark Ballas's knee accidentally knocked into her head, reported Daily Express online.
But Jenkins battled on and competed on stage for which she got excellent reviews from the judges.
"I am a tough Welsh girl and I just got on with it," she said.
Other participants on this season of the show are tennis star Martina Navratilova, soap opera star Jack Wagner, musician Gavin DeGraw among others.
