Does a walker have to be checked in?

What are the rules concerning a walker? I am handicapped and need my walker to get around. Will I have to check in the walker when taking an airline f

What are the rules concerning a walker? I am handicapped and need my walker to get around. Will I have to check in the walker when taking an airline flight?

or:What are the rules concerning a walker? I am handicapped and need my walker to get around. Will I have to check in the walker when taking an airline flight?

or:No it can be taken up to the plane and you will get it again after landing, similar as they do with a baby stroller.

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