Some people experience alopecia and dandruff. Most of the time this is due to dandruff, but some times it could be due to Psoriasis. If you have psoriatic lesions all over the body, it is not very hard to diagnose it. But if there are not any other significant lesions in other places of the body, the diagnosis becomes a little harder.
These people may go on trying various commercially available anti-dandruff agents, but still get no improvement. A dermatologist can easily differentiate such situations as psoriasis, only by looking at the lesion. How do they do that?
They do it by careful examination of the lesion. The psoriatic lesions are described as erythematous patches topped with large silvery scales. The key feature in differentiating these two is “large scales and patchy distribution”. Dandruff is usually distributed throughout the skull and psoriatic lesions presents as patched. The psoriatic scales are large and dandruff scales are very small.
The dermatologist will do a thorough examination in other places too, and may find several such lesions in other parts of the body too.
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