When you hear purring, you probably think your cat is happy and content. That's often true, but there are lots of other reasons cats purr – and not all of them are positive.
Most of the time, purring is the cat equivalent of the human smile: We smile when we're happy – but also when we're nervous or unsure of the situation. Cats might even purr if they feel threatened.
Respond to your animal in a reassuring way when she's purring. Pet your cat or let her sit in your lap. It's not only good for her, studies have shown it's a stress-reliever for you, too. So take time with your cat when she purrs, and you can both enjoy the benefits.