A statement from the teenage star's publicist reads, "Demi Lovato left her tour early this weekend in order to seek medical treatment for emotional and physical issues she has dealt with for some time.
"Demi has decided to take personal responsibility for her actions and seek help. She is doing just that. She regrets not being able to finish her tour, but is looking forward to getting back to work in the near future."
It is not known what sparked her decision to seek help. Lovato has recently been romantically linked to teen pop sensation Justin Bieber and previously dated Jonas Brothers star Joe Jonas.