Very common in Asian children. Usually fade by age 5. My child is part Chinese and since birth has had a large mongolian spot over most of her bottom, a small marking on one leg, and lighter splotches on her back. I used to wonder what people would think when I would change her at swimming classes. I would have given a provider the heads up about it before placing her in care. Then again it was new to me and I just figured it would be questioned. If both parents are Chinese then it likely never occurred to them to mention it. After awhile it just becomes normal, you no longer really notice they are there and forget about them.

You did what you needed to do. I would have understood the call being made, knowing they sure look like bruises.