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Deleted member D3987
My coach always yells at us if we wrap our thumbs around because she says you can break your thumbs by doing that. But we are not doing handstands or anything where it would help at all.
actually, that's a bit exaggerated but you're told that so that you don't do it. what does happen though, is that you will tear the cuticle on the side of your thumbnail away from the nail and nail bed. it is very painful and can cause infections.