Why do cats purr?

Cats purr for several reasons, and it is rarely just about feeling content. Here are the most common explanations:

• Contentment and relaxation: This is the most well-known reason. A cat will often purr when they are feeling safe, happy, and relaxed, such as when they are being petted or napping.
• Self-soothing: Cats often purr when they are stressed, in pain, or frightened. Researchers believe the vibration may help calm the cat down, acting as a sort of self-soothing mechanism.
• Healing: Some studies suggest that the frequency of a cat’s purr (typically between 25 and 150 Hertz) may promote bone density and tissue repair. This could explain why cats purr when they are injured or recovering from illness.
• Communication: Kittens begin purring when they are only a few days old to signal their location to their mother and let her know they are doing well while nursing. Adult cats continue this behavior to communicate with humans and other animals, sometimes to solicit food or attention.

Essentially, a purr is a complex form of communication that expresses a wide range of emotions and physical states.