Go through these in order and stop at the first one that applies. If you are reading this for someone else, answer for them.
1
Is any of this happening now?
Call 911
Seek emergency care for heavy bleeding that does not stop with the pressure instructed by your team, trouble breathing, fainting, chest pain or signs of a severe allergic reaction.
Other emergency signs, for anyone
Someone who is struggling to breathe, gasping, choking, or cannot get words out
Someone who has chest pain, tightness or pressure lasting more than a few minutes
Someone who has sudden weakness or drooping on one side of the face or body, slurred speech, or sudden confusion
Someone who is unconscious, or cannot be woken
Someone who is bleeding heavily and it will not stop with firm pressure
Someone who has had a seizure that will not stop, or does not wake up afterwards
Someone who has lips or skin that look pale, blue, grey or blotchy
Someone who you believe has taken an overdose or swallowed something poisonous
2
Is any of this happening?
Be seen today
Contact your surgical team promptly if you have increasing redness, warmth or swelling; pus or a bad smell; fever; worsening pain; persistent bleeding; opening of the donor wound; or skin that becomes unusually dark or blistered.
3
Does any of this apply?
Book an appointment
Mild tenderness, itching, crusting and limited swelling can be part of routine healing.
Mention them at follow-up if they are not improving or you are unsure.
Every sign above is quoted from the sofidex article on Hair transplant. If you are not sure, err upward — it is always reasonable to be checked.