Puppies are excited to run up the stairs and jump in the tub. They get so happy about bath time I let them run up and jump in this once. Again, I let them run up this ONCE. I know some of you have shown concern for the pups back health, i appreciate all the concern. I love my pups and yes I indeed carry them up the stairs when it's time for a bath. They are mostly only upstairs for baths.