Why is My Cat Staring at Nothing? Cats might stare at nothing for a variety of reasons. Often, it's their heightened senses picking up on stimuli that we, as humans, can't perceive. Whether it's a play of light, a tiny insect, or even a distant sound, cats are incredibly attuned to their environment. However, prolonged or frequent staring can also be a sign of medical or behavioral issues. It's essential to observe the context and consult a vet if in doubt.