Mobility changes often show up as hesitation: pausing before stairs, avoiding high perches, stiffness after naps, or a shorter stride. The most common explanation is discomfort from arthritis or soft-tissue pain, but similar behavior can also come from nail overgrowth, obesity, or even low-grade illness that makes movement feel harder. A vet visit should come first if the change is sudden, if there’s limping, crying, a hunched posture, or any weakness in the back legs.
Coat and skin changes can look like dandruff, a greasy coat, mats along the back, or less grooming. Sometimes this is simply because bending and twisting hurts, but it can also reflect dental pain, nausea, dehydration, parasites, or endocrine disease. Prioritize a vet check if you see bald patches, sores, intense itching, a strong odor, or rapid coat decline alongside weight loss.
Appetite shifts include eating less, becoming picky, dropping kibble, or suddenly eating more than usual. Dental disease, kidney disease, gastrointestinal upset, and hyperthyroidism can all sit behind “just not finishing meals.” Any cat that eats nothing for 24 hours, vomits repeatedly, or shows weight loss needs prompt evaluation.
Cognition and behavior changes may include nighttime restlessness, new vocalizing, confusion, litter box misses, or increased hiding. Pain, high blood pressure, thyroid disease, and sensory loss can mimic cognitive decline. A vet visit comes first if the behavior change is abrupt, paired with disorientation, seizures, head pressing, or new aggression.
