Blood Tests?

You really need to chill out… You’re a male, you have about 6 liters They take out like a 1-2 teaspoons, that’s a couple of 5-10ml… that’s 0.008% of your blood It takes 24-48 hours to replenish No there arent negative effects (apart from maybe a bruise which should clear up in 2-3 days) Yes the vein is punctured, but again, it’s a tiny hole! and it mends in a day or two No permanent marks Ok now donating without feeling sick or dying is a complicated question, when you donate they take about a pint (you’ve got about 12 pints), I think that’s the legal limit… Without feeling sick, my guess is maybe 1.5 pints Without dying, I dont know, but I’ve lost maybe 3 pints before and Im still alive… Your body continuously makes blood cells… Again, 24-48 hours your blood should be remade…

Ok now the odds of the vein being damaged are low. Most doctors/nurses know what they are doing, but it really shouldnt be hurting that bad, and if the bruising is bad or if it isnt getting better then you may want to go see a dr…