Left analog stick on Wii u pro controller won't work

[tbird99]

Sometimes when I move it to the left it doesn't pick it up but it's working besides that. Is there a way to fix this?

 

[FamilyTeam]

You probably wore it out. You should probably try clicking it a lot to see if it moves back into place, or opening it up to fix it yourself only if you know exactly what you're doing. If not, then you could see if the batteries have anything to do with it, since faulty or worn out batteries sometimes screw up the controls.
If it's not any of that, then you should either send it to someone to get fixed or get a new one.