Scarring – cyst removal requires the overlying skin to be cut, which will result in a scar. Scars usually fade in time, but can be quite red for the first year. Occasionally, the scar may be more noticeable than the cyst itself.
Infection – a few days after cyst removal, the wound may become red and sore. This could be the signs of a wound infection, which may need antibiotics
Recurrence – it is said that approximately 5% of cysts may return after removal
Pain or numbness – occasionally, a nerve may have been very close to the cyst and could be injured during removal. This could lead to long-term pain and/or numbness in the area
Dips in the skin – this is a common result of cyst removal, and is due to the cyst having pushed deeper tissue away from it as it grows. After removal, this dent is still present and so can show when the skin is closed. The surgeon will usually try to reduce this effect for you, but some contour defects can still remain.
Other complications can also occur during cyst removal, depending on the size and location of the cyst. This list of risks is not exhaustive, and you should of course discuss possible complications and treatment options with your specialist.