Papules

Definition

Papules are small, raised, solid pimples or swellings on the skin that do not contain pus. They are often caused by inflammation or infection and can be a sign of various skin conditions.

5 Must Know Facts For Your Next Test

1. Papules are typically less than 1 centimeter in diameter.
2. They can be caused by bacterial infections such as acne and folliculitis.
3. Viral infections like molluscum contagiosum and warts can also result in papules.
4. Papules may appear red, pink, or brown depending on their cause and the individual's skin tone.
5. Unlike pustules, papules do not contain pus; they are solid to the touch.

Review Questions

• What is the primary difference between a papule and a pustule?
• Name two viral infections that can cause the formation of papules.
• How does the appearance of papules vary with different causes?

Related terms

Pustule: A small blister or pimple on the skin containing pus.

Folliculitis: Inflammation of hair follicles often leading to red bumps or pustules.

Molluscum Contagiosum: A viral infection causing raised, pearl-like papules or nodules on the skin.