Hi, Am Arjun,i Donate Blood On My Every Birthday After

Hi,
am arjun,i donate blood on my every birthday after 18 age..am 25 now.fist time after donate blood I found a blood cloting wth a 1 inch radius on my arm surrounded wth the donated spot.,fst the nurce try to take blood from right arm,bt it's failed,so she take blood from my left arm,the cloting spot is found in right arm,that she failed to take blood..is it make any problem.