Pallor

This does not cite its .
You can Wikipedia by introducing appropriate citations.

Pallor is an abnormal loss of skin or mucous membrane color. It can develop suddenly or gradually, depending on the cause. It needs to be properly distinguished from other symptoms such as whitening of the skin or hypopigmentation (loss of skin pigment).

Several severe illnesses lead to general pallor of the body.

Unless it happens accompanied by pale lips, tongue, palms, mouth and other regions of mucuous membranes, (that is, a general pallor) it is probably not clinically significant and does not require any treatment. Pallor is more evident on the face and palms.

It is also important to notice that pale skin doesn't necessarily indicate disease — lack of sunlight or inherited paleness may be the reason, and it's nothing to worry about.

Possible causes

lack of exposure to the sun (note: in some cases it may be healthier to be pale than tanned, but see Human skin production of vitamin D).
anemia (blood loss, poor nutrition, or underlying disease)
shock
frostbite
chronic diseases including infection and cancer
hypothyroidism
leukemia
heart diseases

From Wikipedia, the Free Encyclopedia. Original article here. Support Wikipedia by contributing or donating.
All text is available under the terms of the GNU Free Documentation License See Wikipedia Copyrights for details.