Start with context
Does the cat vocalize around meals, doors, litter boxes, other cats, or at night? Is the behavior new? Does it occur with pacing, confusion, increased thirst, weight loss, vomiting, or changes in hearing or vision?
Medical causes
Hyperthyroidism, pain, hypertension, kidney disease, sensory decline, and cognitive dysfunction are among the conditions that may change vocal behavior, particularly in older cats.
Behavioral and environmental causes
Boredom, inconsistent reinforcement, lack of play, conflict with another cat, environmental change, and frustration can increase vocalization. Punishment usually adds stress and may worsen the problem.
What can help?
Keep routines predictable, provide age-appropriate play and enrichment, separate resources in multi-cat homes, and avoid rewarding demanding vocalization inconsistently. If medical causes are excluded, a behavior plan can be tailored to the trigger.