A papule is small, solid and usually conical elevation of the skin. Papules do not containing pus, which distinguishes them from pimples. Papules often occur in clusters and can accompany rashes.

Papules can be caused by:

• Inflammation (which in turn is often caused by infection or abrasion of the skin)
• Accumulated secretion of skin tissue (hyperplasia) or glandular fluids.
• Hypertrophy of skin cells.