How to tell if oranges are bad?

Hey there, fellow fruit enthusiasts! I've been known to indulge in a few too many oranges from time to time, but lately I've been finding myself second-guessing whether or not they're still good to eat. So, how exactly do you tell if oranges are bad? Is it just by looking at the skin for discoloration or are there other telltale signs to watch out for? I'm hoping to avoid any unpleasant surprises, so I'd appreciate any tips or tricks you might have up your sleeve!