Travis Barker is in the hospital because he has pancreatitis, and doctors believe it was triggered by a colonoscopy ... TMZ has learned.
Multiple sources connected to the family tell TMZ ... Travis' Tuesday hospitalization was a result of the condition -- which is an inflammation of the pancreas -- and includes symptoms like nausea, intense stomach pain and vomiting. We were not told precisely when Travis had the colonoscopy, but we're told it was recent.
As we reported, Kourtney Kardashian took Travis to West Hills hospital, near their home, early Tuesday. From there, he was taken by ambulance to Cedars-Sinai Medical Center in L.A. -- one of the best facilities in the country.