My son seems to get regular nose bleeds every couple of months. He is three and a half years old. I was thinking that perhaps it could be the dramatic weather changes that we do have here in California sometimes. Sometimes his nose starts to bleed if he lightly bumps his nose and other times it just starts out of the blue. The worst part of the entire thing is when he climbs out of bed and his face is covered with blood and he doesn t? know what is going on. I think it scares him more then anything. Could this be normal or could it be something more serious?