Loss of skin pigmentation occurs in leucoderma giving rise to white patches on skin.
These patches of loss of pigmentation are flat and even in level with rest of the dermis.
There is normally no scale formation in the lesion areas.
These white patches prominently occur on the extremities like hands and feet.
Initially in leucoderma, the loss of pigmentation occurs as small spots and it progresses to cover larger areas with different shapes.
The loss of pigmentation initially appears to be connected to the parts of the body exposed more to sun.
These areas of loss of skin pigmentation are prominent on the face, feet, wrists and hands.
Another tel-tale sign of this disease of white patches is depigmentation around the orifices of the body like mouth, nostrils, eyes, ears, genitalia, anus and umbilicus.
Hand affected by vitiligo
In some cases these white patches with loss of pigmentation show hyperpigmentation on the margin of the lesions.
The hair growing on the lesion area also loses pigment and turns grey.
In the vitiligo affected there is premature graying or whitening of hair on the head, eye brows, eyelashes or beard.
In dark skinned people the inside of the mouth may also loses colour.
Leucoderma is more noticeable in dark skinned people.
Exposure to sun makes the lesions more noticeable and can cause sun burn.
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