- Vitiligo appears to occur when immune cells destroy the cells that
produce brown pigment (melanocytes). This destruction is thought to be due
to an autoimmune problem, but the cause is unknown.
- Vitiligo may appear at any age. There is an increased rate of the
condition in some families. The condition affects about 1 out of every 100
people in the United States.
- Addison's disease
- Pernicious anemia
- Flat areas of normal-feeling skin without any pigment appear
suddenly or gradually. These areas have a darker border. The edges are
well defined but irregular.
- Vitiligo most often affects the face, elbows and knees, hands and
feet, and genits. It affects both sides of the body equally.
- Vitiligo is more noticeable in darker-skinned people because of the
contrast of white patches against dark skin.
- No other skin changes occur.