(Count indicates over the past week)
(Sudden onset vs. gradual change matters clinically)
(Watch for approach and entry behaviour specifically)
(Select the most significant change - even small changes affect sensitive cats)
(The "n+1 rule": one box per cat, plus one extra)
(Location is a primary factor in elimination anxiety)
(Litter box avoidance rarely apperas in isolation)
(UTIs, kidney disease, and diabetes can trigger litter box avoidance)