Vitiligo is a chronic autoimmune disorder that causes patches of skin to lose pigment. This happens when melanocytes – skin cells that make pigment – are attacked and destroyed, causing the skin to turn a milky-white color. The cause of disease is complicated and the progress is difficult to predict. Vitiligo is most likely to happen among people with skin type III-VI. The disease is not life-threatening or contagious, but it often cause patients anxiety and depression.
Psoriasis is a long-term chronic skin problem that causes skin cells to grow too quickly, resulting in thick, white, silvery, or red patches of skin. Patches are typically found on the elbows, knees, scalp, lower back, face, palms, and soles of feet, but can also affect fingernails, toenails, and mouth. It is a genetic disease that can be affected and enhanced by environmental conditions.