The Bayern Munich midfielder had been a doubt for Euro 2012 after missing Thursday's final warm-up match against Israel due to a calf injury, but fears he may not be fit enough to play in Poland and Ukraine have been allayed by the national team's doctor Hans-Wilhelm Muller-Wohlfahrt.
"Bastian has absolutely no problems anymore," said Dr Muller-Wohlfahrt on Sunday. "He has no pain.
"He will continue to receive treatment, but we expect him to train again with the team tomorrow."
The 27-year-old still needs a bit of time to get up to speed with his 22 colleagues, but there should be no problems about him taking to the field in Germany's first group game against Portugal on June 9.
"Of course he is a bit behind the others in terms of training, but I expect him to be fully available for the Portugal game," added Dr Muller-Wohlfahrt on the website of the German Football Association (DFB).
With Schweinsteiger back in tow, Germany coach Joachim Low is now looking forward to Monday's departure for their Euro 2012 base, and the month he hopes to spend there.
"There is no reason not to look forward to these European Championships," he said.
"We are ready, we have trained well and we are pleased that things are now getting under way.
"We have got to focus a lot over the coming week and we have a lot of work ahead."
After facing Portugal, Germany then clash with neighbours Holland before finishing the group stage against Denmark on June 17.
All three of Germany's group games will be staged in Ukraine, but they have nevertheless opted to keep their first choice of accommodation, the Hotel "Dwor Oliwski" close to Gdansk, which has been booked through until the day of the final, when Low's troops hope to be checking in to a hotel in Kiev.
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