Table I.

Side effects of platelet-rich plasma injections

Step in procedure	Side effect
Blood draw (from antecubital fossa)	•Minor discomfort with blood draw •Vasovagal reactions •Nerve injury/damage (rare) •Local bruising
Administration of local anesthetics to scalp (lidocaine with epinephrine) while centrifuging PRP	•Minor pain and burning •Pinpoint bleeding •Local anesthetic reactions (rare)
Administration of PRP	•Minor discomfort if areas are not fully anesthetized •Pinpoint bleeding
Early recovery period (first 24-48 h)	•Minor pain in scalp •Forehead swelling •Scalp redness (rare)
Late recovery (first 2 mo)	•Telogen effluvium (uncommon)

PRP, Platelet-rich plasma.