Hair Loss after 1st PRP treatment, is this normal?

It is unlikely that PRP has caused hair loss. Any localized trauma to the area from injection and the use of epinephrine can lead to a "psuedo-shock" loss in less than 5% of patients, however, this is typically self limited and temporary.As always, discuss your concerns with a board certified plastic surgeon (ABPS) with experience in hair restoration.

divinayak23,Sounds like you are having a shedding or telogen effluvium. I would recommend that you consult with your hair loss specialist. This should not happen, and I have never had a patient shed after a PRP treatment. Caution that this can result from the anesthesia when the miniaturizing follicles are exposed to epinephrine.Sincerely,Bernardino Arocha, MD

In my opinion, shedding after PRP injection is a rare event. I would say the incidence is somewhere between two and 5%. The shedding should decrease within one or two months. If you are using any other concomitant medications, it is possible that this may be the etiology of the hair Loss.PRPHAIRMD.COM 

PRP treatments themselves typically do not cause hair loss.This may represent ongoing loss from Androgenetic Alopecia or other causes .Finasteride (for men), and/or Minoxidil(men and women) often augment the effects of PRP.