Delfino has been out since Nov. 6, when he left the game against New Orleans with vertigo and dizziness. He took several blows to his head early in the season and was diagnosed with a concussion.
He has missed 27 games including the Bucks' game against the Miami Heat on Friday night.
Head coach Scott Skiles said Delfino took part in the team's shoot around and if he responds to the stepped-up physical activity, he will travel with the team for the first time since Nov. 5 at Indiana. Milwaukee plays New Jersey Saturday night and Atlanta next week.