My son fell backwards on tiles today and has a large swollen ball at the back of his head. its very sore. should i be concerned if it hasnt gone down by tomorrow?

Warning signs: If he seems to have trouble with balance, coordination, starts to have vomiting or headache, please have him seen right away in the Emergency department. To relieve swelling and pain, an ice compress may be applied gently to the area and Tylenol or Motrin may be given.

Not particularly: The ball is likely a collection of blood under the scalp (typical for the skull). It is similar to a bruise you would get on a fleshy part of the body. If he didn't pass out after the fall. have memory change or vomiting, the hit was minor. The bump will go down over time but may take several days.

Unlikely: If he experiences these things then I would suggest he be seen: Temporary loss of consciousness. Confusion or feeling as if in a fog. Amnesia surrounding the traumatic event. Dizziness or "seeing stars" Ringing in the ears. Nausea. Vomiting