As these are large areas of incision, haematomas and secretions or bacterial inflammation may impair healing. Sensitivity in the skin and lymph flow regenerate slowly over the course of several months and may remain diminished in the region of the scars.
Thromboses and embolisms are extremely rare but can lead to a threat to circulation and respiration. Obtrusive scarring caused by impaired healing can usually be improved by small corrective operations under local anaesthetic.