Lahm rules out any Germany return
This photo taken on July 4, 2014 shows Germany's defender and captain Philipp Lahm during the quarter-final football match between France and Germany at the Maracana Stadium in Rio de Janeiro during the 2014 FIFA World Cup - by Adrian Dennis
"It's like life," Lahm told Sky Sport News. "You should never say never, something could always crop up.
"But truthfully, I'm ruling out any comeback from retirement."
The 30-year-old Bayern Munich full-back ended his international career just five days after leading his country to World Cup glory in Brazil.
Having played 113 games for Germany, his withdrawing from the international stage took many by surprise.
But Lahm confirmed to Munich daily TZ that he was "100 percent convinced of his decision", which he said was taken not on an emotional whim but after some "hard thinking".
Lahm will now focus on the season ahead with Bayern, the Bundesliga champions with whom he is under contract until 2018.
"It's a shame the holidays are over, but we have to focus on the upcoming season and do everything to reach the goals we've set," he said.
Bayern play Borussia Dortmund in the German Supercup on August 13 before lining up against Wolfsburg at home in their opening Bundesliga match on August 22.