Why your cat suddenly stops eating: hidden triggers and risksA sudden refusal to eat can be a sign of serious pathology, but in many cases, it is triggered by environmental factors, feline psychology, or improper food storage. Identifying whether a cat is experiencing a medical emergency or a behavioral preference is critical for preventing permanent organ damage. Similarly, heat, mating cycles, moving house, or the introduction of new family members can cause a cat to stop eating. Owner Action PlanIf a cat stops eating, owners should first verify the expiration date of the food and the cleanliness of the dishes. If the cat accepts treats but ignores its main meal, the issue is likely pickiness or a defective product batch.