The I-Team has uncovered more puppies suffering inside Wisconsin puppy mills.

It's a story we have been tracking for more than a year. We've taken you inside the puppy mills. You've seen the sick, injured puppies.

Now, some of those neglected dogs are beginning to turn up at local vet clinics.

Life inside Wisconsin puppy mills is miserable: wire cages, concrete floors, sickness and infection everywhere.

Recently we met Mitzie: a bichon born in a puppy mill in central Wisconsin.

“The first thing I noticed about Mitzie was she was missing as rear paw," Louise Hansen said.

Louise Hansen rescued Mitzie and three other bichons.

“I don’t think any animal should be treated the way these animals have been treated," Hansen said.

“That's the part of her leg she's missing," Veterinarian Diane Dommer said.

Veterinarian Diane Dommer believes some terrible mishap in the puppy mill probably led to Mitzies injury.

“It does say that there was something traumatic in the past. It does not look like a birth defect, per say," Dommer said.

The four bichons we met were suffering form parasites, uterus infections, skin disease and dental disease. After tireless work by vets the dogs are recovering.

“They're so much better off than they were last week at this time. Now we've interceded and prevented some things that really could have limited their lifespan," Dommer said.

They're trying to move beyond their horrid past.

“It's been said that dogs are man's best friend. Certainly this isn't how we treat a best friend," Dommer said.

These puppy mill dogs also have no social skills. They are four years old and they are not housebroken and they are afraid of people.

That's what happens when they never experience a human touch.