A nose bleed is known as an epistaxis and is usually nothing to worry about. BUT given your child's history it is possible he may be suffering from something serious which is causing such frequent nose bleeds. Although epistaxis is usually a mere nuisance there are times when it can be caused by tumors and other dangerous diseases. Hence, it is good to get him checked out.
I wouls normaly not worry about a little nose bleed. The ones from nose picking. This has me concerned for the amount of blood and how fast it comes out. The only thing stopping me from getting him checked out is insurance. There is none at this time. I know this will cause Cat scans, MRI, EEG, Blood work and possible hospitalization. The cost for all that would most likely be more than $9000. Any sugestions on how to get help for financing this in another way besides insurance?
Like you said it will require tests because there are so many diseases that have similar symptoms that it is impossible to pin point a problem without lab diagnosis.
As for the cost, I think your son's life is much more important. I do not see any way of getting $9000 quick enough and a massive nose bleed is no joke because he is loosing blood. If he loses enough fast enough he could end up getting a brain hemorage due to lack of blood to the brain.
Plus there is always the chance that the underlying cause may not require tests because there is a possibility that he may have ruptured an artery high up the nose which only requires a special manoeuvre to block.
When an artery ruptures blood flows out in streams as opposed to a vein which only causes minor bleeding. In any case, forget the money and take your son to an expert.
When I was about 8 or9 years old, I had bad nose bleeds, not from picking, that would bleed and bleed and I would be drenched. They went away after about a year. My parents took me to the doc and they couldn't explain. I hope it is nothing major. Good Luck.