Our Yorkie was a Kennel puppy, malnourished and a knotted mess.... we tried and tried to get the knots out.... We found that once we took her coat all the way down to her skin she is way better..... Also once you get the knots out always comb them before bathing them or they will knot up again and always blow dry them.... It was a hard decision to shave her, but I am so happy we did and it is growing out faster and looks amazing... Just somthing to think about....