In an Instagram post today, Dion wrote, Im so sorry to disappoint all of you once again.
The condition causes stiffness and spasms in several muscles in the body, and is incurable.
Medical experts say it affects only about one or two people in a million.
Celine DionGetty Images
Todays announcement cancels all 42 of the 2023-2024 dates, which had been rescheduled from last year.
Ticketholders are requested to drop a line to the original point of sale for refunds.
See Dions Instagram post below for the roster of canceled tour dates.
