Paris Has Bedside Manner

5/11/2007 11:17 AM PDT

Paris Has Bedside Manner

TMZ has the lowdown on the latest Paris Hilton drama ... and this time it's medical.

TMZ cameras caught Paris' dad Rick Hilton checking in to Cedars-Sinai Medical Center in L.A. early this morning for an operation. We're told that he will require a hospital stay between three and five days, but his illness is not life-threatening.

Paris did not accompany her dad to the hospital.

Yesterday, Paris' uber celebrity DUI lawyer, Richard Hutton, arrived at Rick's home to meet with Paris for a long meeting. We're told Paris is in a profoundly (a word we generally don't use with Paris) "somber mood" in the wake of her jail sentence.

Stay tuned.