The defender remains unavailable for selection ahead of their UEFA Champions League league-phase trip to Paris Saint-Germain on Tuesday night.
The 24-year-old Japan international took part in Monday's final session at Sabener Strasse but will not be named in the matchday squad for the first time this campaign, according to the latest team news.
His progress nonetheless offers a timely defensive boost for coach Vincent Kompany as Bayern prepare for one of their toughest away fixtures in Europe.
Kompany confirmed that only long-term absentees Jamal Musiala (leg) and Alphonso Davies (ACL) remain sidelined. The Belgian, whose contract was recently extended until 2029, expressed optimism about the squad's overall fitness ahead of the clash.
Ito joined Bayern from VfB Stuttgart in the summer of 2024 and was expected to play a key role before his injury setback, a recurrence of a preseason issue that required surgery and sidelined him for most of the campaign so far. His ongoing recovery strengthens Bayern's defensive options as they look to build momentum in the revamped league phase.
Bayern have made an unbeaten start in this season's Champions League, winning all three of their opening matches, and will travel to the Parc des Princes aiming to extend that run.
PSG, the defending European champions, share the same perfect record after three wins and will look to make home advantage count in what promises to be a high-tempo encounter between the top two teams in the standings.
Kick-off in Paris is scheduled for 22:00.
Bayern Munich have made a blistering start to the 2025/2026 season under head coach Vincent Kompany, whose side have rewritten European football history with a remarkable 16-game winning streak.
Real Madrid's hierarchy are growing uneasy over the team's sudden dip in form but remain confident that head coach Xabi Alonso can restore balance after a turbulent fortnight.
Arne Slot believes Liverpool's toughest spell of the season is now behind them, with a crucial run of winnable fixtures offering a chance to reignite their campaign after a heavy defeat to Manchester City.
Germany coach Julian Nagelsmann has urged Bayern Munich's 17-year-old talent Lennart Karl to focus on development with the under-21 side before thinking about a senior national team call-up.
