Gracie, who was 3/4 Great Dane 1/4 lab, so had very very smooth, flat to the skin fur, jot a lump on her side when she was only 5 or so. Because she was so smooth, it REALLY stuck out, but her vet examined it, said it was just a "wen," just a bump, nothing to worry about. It was there for the rest of her very long, spoiled rotten life, to no ill effects, and you know, it "looked" much smaller to us once we knew it was harmless! Hope Daisy's is, too!