What is this bump, you ask? It's called a hemangioma. Basically it's a benign tumor of cells that line blood vessels. When I am asked about it, pretty much every time we go out into public anymore, I've learned to dumb my response down to, "It's a birth mark." At first, I felt like I should inform people of hemangiomas, and educate them, but that gets tiring, and quite frankly, people don't really care that much--it's almost comical to watch their eyes glaze over as I rattle off medical jargon. They are just probably checking to make sure I'm not throwing my daughter down the stairs.
We have taken Hadley to the pediatric dermatologist to have her hemangioma checked out since it is located close to her soft spot. He said it is absolutely no big deal, and will go away on its own by the time she is three years old. Hemangiomas are most common in females--check, preemies--check, Caucasians--check and multiples--check. I guess one of our daughters was bound to have one of these suckers. He then proceeded to show us pictures of hemangiomas that are actually something to worry about. That was humbling--I looked at both of my daughters and gave thanks.
You can see Hadley's hemangioma below (she is on the right in the first picture).