In rare cases permanent loss of feeling to the skin may occur. In some cases this can be painful due to clumps of scar tissue collecting around the end of cut nerves, called neuromas. Scars are present after all suregry. Liposuction and ultrasonic liposuction leave smaller scars than traditional surgery. In all cases scars can become thick and heavy.
Asymmetry occurs but is usually mild.
It is difficult to remove exactly the same amount of tissue on each side and for this reason additional surgery may be needed. Secondary surgery is sometimes needed to correct under correction or over correction at the original operation. Wound separation may develop due to infection or poor healing due to many causes such as smoking or poor nutrition. Irregular contour can occur with any technique but traditional surgery or traditional liposuction seems to leave more noticeable indentation than ultrasonic liposuction . Change in shape or position of the nipple is usually due to heavy scar tissue in the layer between the skin and the muscle.