Tissue necrosis of the nipple-areola complex is the principal mastopexy medical complication. To prevent nipple-areola complex necrosis, the surgeon monitors and evaluates the viability of the transposed tissue; by the presence of oxygenated, bright red arterial blood demonstrates the proper functioning of the nipple-areola complex vascular system. A more common post-operative nipple-areola complex complication is dysesthesia, manifest as an abnormal sensation of numbness, and as a sensation of tingling, that perdures for the wound-healing period, yet it diminishes as the full functioning of the breast's innervation resumes the full sensitivity to the nipple-areola complex; nonetheless, permanent numbness of the nipple-areola complex is rare.