Why do cats purr?
Explain it like I'm 16
Cats purr mainly when they feel comfortable, but they can also purr when they are stressed, in pain, or trying to calm themselves.
A real-world example
A cat may purr while being stroked because it feels safe, but it might also purr at the vet as a way of coping with fear—similar to how some people hum when nervous.
Example 1 of 1
Why this matters
Purring does not always mean a cat is happy, so look at its body language and behaviour as well.
What next?
Keep going — pick your next step and we'll take it from here.