About Skin Darkening Disorders
Skin-darkening disorders can be either benign or accompanied by other heath conditions. These conditions manifest themselves in many ways on individuals' skin, for the most part as patches on different areas of the skin. Most dark skin discolorations manifest themselves as black, blue or red colors.
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Addison's Disease
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Addison's disease is a skin-darkening disorders in which the adrenal glands don't produce enough of the steroid hormones. It causes brown patches of skin, making a person look suntanned, or it may appear as white patches on the skin.
Hyperpigmentation
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Hyperpigmentation occurs when excess amounts of melanin concentrate in areas all over the skin. They look like brown patches all over the skin. Conditions such as cirrhosis of the liver, diabetes and heart problems can cause hyperpigmentation of the skin.
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Lupus
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Lupus is an autoimmune disease in which the immune system and organs break down, causing the body to attack itself. This skin-darkening disorder occurs on the face, appearing in butterfly-shaped patterns.
Rosacea
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This skin-darkening disorders manifests itself as tiny red bumps on the face, making an individual look like she's blushing.
Alkaptonuria
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Alkaptonuria, a rare genetic disease, manifests when urine turns black when left standing. It appears on the skin as blue-black discoloration around the ears.
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