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Scarlet fever 1.JPG
A girl with circumoral pallor due to scarlet fever
Classification and external resources
ICD-10 R23.1
ICD-9-CM 782.61
MedlinePlus 003244
MeSH D010167

Pallor is a pale color of the skin that can be caused by illness, emotional shock or stress, stimulant use, or anemia, and is the result of a reduced amount of oxyhaemoglobin and is visible in skin conjuctivae or mucous membrane.

Pallor is more evident on the face and palms. It can develop suddenly or gradually, depending on the cause. It is not usually clinically significant unless it is accompanied by a general pallor (pale lips, tongue, palms, mouth and other regions with mucous membranes). It is distinguished from similar presentations such as hypopigmentation (lack or loss of skin pigment) or simply a fair complexion.