Ferrets are highly active and social mustelids that suffer significantly from small cages, lack of enrichment, and social isolation.
Ferrets confined to small cages without adequate exercise space develop obesity, stereotypic pacing, and muscle weakness from insufficient movement. Social isolation causes chronic stress in a species that naturally lives in small groups. Commercial pellet diets lacking in animal protein cause adrenal and other metabolic diseases. Ferrets that escape from inadequate housing may be lost and face severe welfare risks. The high activity needs of ferrets make them inappropriate pets for owners unable to provide supervised free-roaming time daily.