Macules

Definition

Macules are flat, distinct, discolored areas of skin less than 1 centimeter wide without any change in texture or thickness. They are often a sign of underlying infections or conditions affecting the skin.

5 Must Know Facts For Your Next Test

1. Macules are commonly associated with viral infections like measles and rubella.
2. They do not involve any elevation or depression of the skin surface.
3. Macules can be caused by various factors including viral infections, bacterial infections, and allergic reactions.
4. Unlike papules, macules do not contain fluid or pus.
5. Diagnosis of macules often involves clinical examination and may require additional testing to determine the underlying cause.

Related terms

Papule: A small raised bump on the skin that is typically less than one centimeter in diameter.

Vesicle: A small fluid-filled blister on the skin.

Erythema: Redness of the skin caused by increased blood flow to superficial capillaries.