From my own experience, they are very clean. We always think of pigs being dirty,but they are not!! They go to potty in the same place each time, and never in their food area or bed/sleeping area. No fleas. They have hair, not fur. Fleas prefer fur. Also, they are virtually odorless. I've had them in the house in a litter box. They learn quiker than a puppy, but not usually as quick as a kitten. Hope this answers your question.
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