With all surgery there is the possibility of complications. The main complications with removal of small moles from the skin are:
Bleeding: bleeding following surgery occasionally results in the need to re-operate to stop bleeding or to remove a build up of blood under the skin (haematoma).
Infection: there is always a small risk of an infection with surgery. Usually these will settle with antibiotics. Rarely they can be serious.
Wound break down and slow healing: if the wound opens up, usually due to infection, then healing can be slow afterwards.
Damage to nerves: at certain sites, particularly on the face, there are small but important nerves running under the skin. These can be damaged during surgery. It is most unusual with simple skin removals but more likely where there are deeper lumps.
Poor scarring: scarring depends more on how an individual heals than on how the operation is carried out. Some people make great scars that may be difficult to see. Other people’s scars may stretch or turn hypertrophic and keloid. Hypertrophic and keloid scars tend to be lumpy, red, itchy even painful and may take a long time to settle.
Recurrence: cysts and lipomas that have been removed may sometimes grow back.