While there’s no formal definition, I think it isn’t. It would be considered medium sized. I live with a 4 lb dog. I’d say 25-50 lbs would be medium, small bel

While there’s no formal definition, I think it isn’t. It would be considered medium sized. I live with a 4 lb dog. I’d say 25-50 lbs would be medium, small below that and large above.