If you sustained a head injury (like, cracking the skull or cutting the scalp deep enough for stitches), do you feel the need for those treatments by a doctor? I mean, does the pain make you go see a doctor? I bumped into the edge of my car's trunk door (while it was open) and started bleeding (I don't like to look at it too much as I don't like a gory stuff). I thought I hit it strong; but, as the trunk lid was not bent, I think I didn't hit it hard enough. It stopped bleeding after several minutes later and the pain is not thumping.