"Charlie has picked up a really bad looking injury regarding his kneecap. He has had an operation and will be out for some time," manager Eddie Howe told the club's website.
Bournemouth skipper Simon Francis and midfielder Lewis Cook are also out for the rest of the campaign with knee injuries suffered earlier in the season.
Bournemouth are 13th in the league standings with 38 points and travel to Brighton and Hove Albion on Saturday.
News that makes sense
Your trusted source for staying up-to-date with the world around you. Get free daily news updates and analysis, straight to your inbox.
(Reporting by Shrivathsa Sridhar in Bengaluru; Editing by Keith Weir)
