Story highlights The singer posted a blog entry on U2's site

He was involved in a bicycle crash in November

He said he's working hard to recover before his band's tour

(CNN) Bono has shared with fans that recovery from an accident has been slow going and that he's worried he may never play guitar again.

The U2 frontman underwent hours of multiple surgeries in November after a bicycle accident in New York City when he tried to avoid another rider in Central Park. The singer broke his arm in six spots, and he fractured his eye socket and shoulder blade.

On New Year's Day, he posted a blog entry on the band's website in which he detailed his struggle.

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"Recovery has been more difficult than I thought," Bono wrote. "As I write this, it is not clear that I will ever play guitar again. The band have reminded me that neither they nor Western civilization are depending on this."

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