Adam looks like he got quite a bump from the photo you sent. From the photo, it looks as if the superficial layers of the wound have separated a little bit. Not to worry-- the wound should heal just fine. The resultant scar, however, may be a bit wider than it could be, and may be improved with scar revision surgery. Some plastic surgeons may recommend completing this early, and some may recommend waiting for some time. Talk with your pediatrician, and get a referral to a plastic surgeon in your area who is known for treating kids. Best wishes!