The 45-year-old actress, who has been recently photographed wearing a cast, reportedly injured herself while preparing for a production in Los Angeles.
Shield's rep told People: "Brooke broke her hand during rehearsal for the musical Leap Of Faith. The cast will be off before previews on September 11. It was a minor break and did not affect the production schedule."
Earlier this year, Shields revealed that a lioness bit her on the bottom during filming for Running Wild.