Patchy irregular skin discoloration can be caused by various reasons.The skin discoloration pictures and their brief description gives us a clear idea about the conditions and the ways to tackle them.
Skin discoloration can be different and versicolor like white, brown, dark, red, pink, black, blue, orangish, yellowish, bronze and slate colors.
Skin discoloration and hyperpigmentation in Addison diseaseAddison's disease, which is a disorder of adrenal gland insufficiency, increased tanning can be noted.
The manifestation of Addison disease in the skin primarily by hyperpigmentation.
SunburnSunburn is a burn to skin tissue due to over exposure to sun light. There is malady and pain with hot, red or reddish skin and associated fatigue and mild dizziness.
Tanning is a process by which skin color is darkened due to exposure to ultraviolet rays.
Moderate exposure to sun light has benefits like enhancing the vitamin D production by the dermis.
Freckles are often visible in people with fair complexion and are concentrated clusters of melanin deposits.
Freckles contrast from moles and lentigines in that there is no increase in the number of melanin producing cells.
LentigoLentigo (plural lentigines) is a benign hyperplasia (proliferation of cells) of melanocytes.
Regardless of sun exposure lentigo is stable in color and differ from moles in its linear spread, whereas moles are multi-layer nests of melanocytes.
Acanthosis nigricans dark brown coloration is usually found in the body folds like groins, armpits, neck folds etc.
Scleroderma diabeticorum is a rare disorder affecting people with type 2 diabetes.
Scleroderma diabeticorum causes thickening of epidermis on the upper back and the back of the neck with excess black or dark brown melanin deposits.
AlbinismAlbinism (achromia) is a hypopigmentary disorder which is congenital.
Albinism results from defect in production of melanin pigment due to dysfunction of melanocytes (melanin producing cells) in the skin, hair and eyes.
Leucism, white skin coloration, is a result of defects in neural crest pigment cell differentiation.
Unlike albinism wherein the melanocytes are very much present but they fail to produce melanin pigment only, here the discoloration is caused due to defect in the embryonic development and there is partial or complete absence of pigment cells.
VitiligoIn vitiligo, a chronic disorder, loss of pigment (depigmentation) occurs in patches leading aesthetic disfigurement of the affected individual.
These depigmentation patches occur usually on the extremities and around body orifices like umbilicus, mouth, genitalia, nostrils and eyes.
Tinea versicolorTinea versicolor is caused by yeasts (fungi) Malassezia globosa and Malassezia furfur.
The first signs of tinea versicolor infection are small spots of pale discoloration, usually lighter than the surrounding area, developing on the oily areas of the body, such as back, upper arms and shoulder giving rise to itching.
Nevus depigmentosusNevus depigmentosus are harmless non-progressive hypopigmented stable localised patches.
Nevus depigmentosus patches result from localised abnormalities in the function of melanocytes which fail to produce pigments.
Mongolian spotMongolian spot, also known as "Mongolian blue spot," is a benign, flat, congenital birthmark with wavy borders and irregular shape.
The blue discoloration is caused by melanocytes, melanin containing cells, that are deep under the skin.
Related topics on skin care:
Types of skin discoloration
Whitening and fairness
Brown skin discoloration
White skin discoloration
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