Macule

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]

The macule is the simplest dermatological lesion. It is flat and can only be seen and not felt. The macule is noted by a change in color of the skin. It may be brown, blue, red or exhibit a lesser pigment or an absence of pigment. The color of the lesion is one way in which a diagnosis may be focused.

Macules may develop as a result of cystic or otherwise severe acne. They occur after a pimple or cyst has healed, and may remain for up to six months. They are sometimes known in such cases as "pseudo-scars", but unlike true scars they are not permanent.

## Contents

* 1 Examples of macular lesions and disorders
* 2 Macules by color
* 2.1 Brown
* 2.2 Blue
* 2.3 Red
* 2.4 Hypopigmented

## Examples of macular lesions and disorders

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File:Macule.svgMacules

* Freckle
* Vitiligo
* Tinea versicolor
* Becker's nevus
* Café-au-lait spot
* Erythrasma
* Fixed drug eruption
* Junctional nevus
* Lentigo maligna
* Lentigo
* Lewandowsky-Lutz dysplasia
* Melasma
* Phototoxic drug eruption
* Stasis dermatitis
* Mongolian spot

## Macules by color

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### Brown

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* Becker's nevus
* Café-au-lait spot
* Freckle
* Melasma
* Photoxic drug eruption

### Blue

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* Ink (tattoo)
* Mongolian spot
* Ochronosis

### Red

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* Drug eruptions
* Juvenile rheumatoid arthritis
* Rheumatic fever
* Viral exanthems

### Hypopigmented

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* Piebaldism
* Radiation dermatitis
* Vitiligo
* Tuberous sclerosis

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