Hyperpigmentation in skin is caused by an increase in melanin, the substance in the body that is responsible for color (pigment). Certain conditions, such as pregnancy or Addison's disease (decreased function of the adrenal gland), may cause a greater production of melanin and hyperpigmentation.
In this regard, why does my skin seem to be getting lighter?
If your body makes too much melanin, your skin gets darker. Pregnancy, Addison's disease, and sun exposure all can make your skin darker. If your body makes too little melanin, your skin gets lighter. Vitiligo is a condition that causes patches of light skin.
What causes skin to lose pigmentation?
Any location on the body can be affected, and most people with vitiligo have white patches in many areas of the body. Melanin is the pigment that gives the skin its characteristic color. Vitiligo is caused by a loss of pigment in the skin, due to destruction of pigment-forming cells known as melanocytes.
What does discoloration of the skin mean?
Discolored skin patches also commonly develop in a certain part of the body due to a difference in melanin levels. Melanin is the substance that provides color to the skin and protects it from the sun. When there is an overproduction of melanin in a given area, it can result in skin discoloration there.