I recently bought my wife a med heavy rod for jigs/frog fishing.  The reel she has on her med rod is an
Abu Cardinal S30.  The top line rating is for 10lbs.  She has small hands and is really comfortable with this reel.  The next size up looks to be a bit bigger so I wanna get her the same one that she already has.  The problem is that I wanna go up to 14lb mono for the jigs.  Aside from not being able to put as much line on the reel are there any other consequences to putting heavier line on a reel than it's rated for?

Line numbers on a reel are just to show capacity, so no, there's no consequence other than that. I'd think twice about 14# mono on a spinning reel especially for novice angler. Consider 10, 15 or 20# braid. This is strong and eliminates coils and a lot of twist. 

Heavier line has the tendendy to jump from the spool,

Thanks for the tip guys.  Maybe I'll go with braid.  I know that'll be fine for jigs/frogs but she was probably gonna use this rod for heavier spinnerbaits too.  Would that be an issue with braid?

Thanks for the tip guys.  Maybe I'll go with braid.  I know that'll be fine for jigs/frogs but she was probably gonna use this rod for heavier spinnerbaits too.  Would that be an issue with braid?

Nope..

Mike

Thanks for the tip guys.  Maybe I'll go with braid.  I know that'll be fine for jigs/frogs but she was probably gonna use this rod for heavier spinnerbaits too.  Would that be an issue with braid?

nope.