Vitiligo is a common skin disorder. It makes the skin lose its natural color (pigmentation).

Detailed information on the most common types of skin pigment disorders, including albinism, melasma, vitiligo, and skin pigment loss following sun damage.

Alopecia areata is a condition that causes your hair to fall out. It causes bald patches on the scalp, but it can also cause hair loss on other parts of the body.

Addison disease is when the adrenal glands don't make enough of 2 steroid hormones. The hormones are cortisol and aldosterone. Cortisol controls the body's metabolism, blocks inflammatory reactions, and affects the immune system. Aldosterone manages sodium and potassium levels. Addison disease is fairly rare and may first appear at any age.