Like daughter, unfortunately, like mother.

A few months after Demi Lovato exited a treatment center to deal with issues related to Bipolar Disorder, sources tell The New York Post that her mother, Dianna Hart de la Garza, has now entered rehab.

"It has been a tough year for Demi, and her mom has been a constant source of support. But fame has also taken its toll on her family... her mom could take some time to deal with her own issues," an insider told the newspaper.

Lovato has also split with Wilmer Valderrama, who she started seeing in February.

"The age difference meant they were in completely different places in their lives," said a source, referring to the 13-year gap between the celebs.

[Photo: Pacific Coast News]

UPDATE: Reports now indicate that Lovato's mother has actually completed rehab and is back with her family. No word yet on the reason behind the program.