Pet rats are highly intelligent, social animals whose welfare needs are frequently undermet due to misinformation and inadequate housing.
Pet rat welfare is routinely compromised by small cages, solitary housing, and delayed veterinary care. Rats kept alone experience loneliness and anxiety that manifest as stereotypic behaviors, reduced activity, and immune compromise. Mammary tumors cause rapid welfare deterioration if untreated — surgical removal in young rats has good outcomes and extends quality life. Respiratory disease causes chronic breathing difficulty and requires ongoing antibiotic management. The combination of a short lifespan and high disease burden means pet rat owners must be prepared for frequent veterinary care and difficult end-of-life decisions. Rescuing bonded pairs from shelters rather than purchasing from pet stores is both the ethical and practical welfare choice.