Henry was in critical condition after the accident in Charlotte, North Carolina, the report said (http://www.bengals.com).
Police said Henry "came out" of the back of a pick-up truck being driven by his fiancee, the Charlotte Observer said.
Henry has been on injured reserve with the Bengals since November 9 due to a dislocated forearm.
Drafted in 2005, Henry is no stranger to problems off the field. He was arrested several times before being released by the Bengals in 2007 and then re-signed to a two-year contract with the team before the 2008 season.
Henry has 12 catches for two touchdowns this season.
(Writing by Jahmal Corner in Los Angeles; Editing by Peter Rutherford)