Stewart posted on his Twitter account early Wednesday that he was having surgery later in the day. It comes after chronic pain in his toe and left Achilles tendon kept him out of numerous practices in 2009.
He tweaked the injury in the season finale against New Orleans and was knocked out of the game.
Stewart played all 16 games and rushed for a team-best 1,133 yards and 10 touchdowns. Stewart and DeAngelo Williams combined to become the first set of teammates since the 1970 NFL-AFL merger to each rush for over 1,100 yards.