Blood Drug Testing

How come my uncle fainted from the sight of blood?

So my uncles daughter(cousin) was getting a blood test when my uncle fainted and he had foam yes foam coming out of his mouth he was shacking and it seemed like he had a seizure or something we were at some type of laboratory that specializes in blood kinda like a clinic they poured water on him and called the hospital he woke up and didn't want to go to the hospital we are trying to help him what should we do when we ask him says he scared where should we take him he doesn't want to go to the hospital

Public Comments

1. Blood tests can be scary. Just imagine sitting a room waiting for some doctor you do not know, and worrying of hearing cancer or any other nasty thing. Though it could be from his condition, tell him to go, but it probably just from pure fear.
2. my sister had a baby and the dr helping deliver passed out.. it happans
3. Your uncle may be unused to seeing blood, afraid/scared of blood, or plagued by a bad memory of blood. Your uncle may have had a sudden fear of the worst result from the blood test, because foaming of the mouth usually relates to extreme fear and losing control of your body.