she most likely has a hematoma. an accumulation or pocket of blood under the skin. this is just a guess however since i have no way of seeing or examining your daughter over the internet. she would need to see a medical provider for a hands-on examination to confirm this assumption. in the meantime keep up with the cold compresses.
when should i be concerned about a strange bruise? . my daughter was spinning in circles 5 days ago. she lost her balance and fell to the ground landing on her forearm. she says she did not land on any rocks or sticks. she developed a very strange bruise. it is approximately 3" x 6" long with a hard flesh-toned/white lump in the middle of it. the lump is hard and about 1/4" in diameter. she says that the only thing that hurts is when she pushes on the lump. i don't believe it's any sort of bug bite since i could not locate and puncture wounds.