Do you have any idea on why my horse was fine on saturday (walking, trotting, and cantering) and sunday he couldn't even walk (he has been dead lame since then)?

Abscess or pulled a muscle or ligament
My guess is if it's in his foot he bruised his sole and it is abcessing. Feel for heat in the foot.
@noblebr that would make sense because an abscess is formed from a previous injury.
Front right. I was thinking that navicular wouldn't just pop up after one day.. At the moment we are hoping that it is an abscess and not anything more serious. @noblebr
Could have hurt himself in turnout. If he couldn't even walk I'd be worried about an abcess.. where is he lame?
Any ideas on what it could be?
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