Schweinsteiger sat out the start of the season after an operation over the summer, but has admitted that it is still causing him a lot of pain.
"The last few weeks have been really painful for me again," Bundesliga.com quotes Schweinsteiger as saying.
"I've been really trying, but it's come to a point where surgery is the only option. I hope that I can be completely pain-free after going under the knife and just get back to playing football."
There is no date as yet for the midfielder's second operation.