With any medical or surgical procedure there can be side effects, often temporary and minor, and hair transplantation is no different.
Swelling: swelling occurs in nearly all patients. Usually the swelling occurs around the eyes and forehead; it is harmless and begins normally the day after the procedure and last about 5 days.
Numbness: some temporary numbness occurs in both the recipient and donor areas and can linger for a few weeks or months in some patients.
Pain: There should be minimal pain, mild discomfort post operation usually around the donor area and may last a few days. A simple pain killer is normally enough to dull any pain.
Hiccups: can occur after surgery, the condition is not serious but annoying, refrain from drinking carbonated/fizzy drinks for a few days post operation.
Bleeding: bleeding post op is rare in the recipient or donor areas, if it does occur apply light pressure with a compress. Be careful not to bang your head especially in the first weeks. If bleeding persists then contact your Clinic.
Itching: itching is a natural part of the healing process, be careful not to rub or massage the grafted area. With daily shampooing the itching will subside over the first couple of weeks.
This is not an exhaustive list but some common side effects post hair transplant surgery. If you have any doubts or concerns always contact your clinic to calm any concerns you may have.