Cats purr for several reasons, and it is a complex vocalization with different meanings. Primarily, cats purr when they are content, happy, or relaxed, such as when they are in a warm environment, eating, or sitting in their owner's lap. However, cats also purr when they are anxious, stressed, in pain, or sick, possibly as a self-soothing mechanism or a way to request care. Purring may also serve as communication, for greeting, soliciting attention, or signaling non-threat to other cats. Additionally, purring has been linked to healing benefits, as the low-frequency vibrations may help with pain relief, bone repair, and wound healing. The purring sound is produced by the cat's larynx, where muscles rapidly dilate and constrict the glottis in rhythmic cycles during both inhaling and exhaling, creating the characteristic purr sound. In summary, a cat purrs both when happy and when in need of comfort, making it a versatile form of communication and a possible natural healing mechanism.
