How is a papule defined in dermatological terms?

A papule is defined as a raised lesion that is generally smaller than 1 cm in diameter. This dermatological term is used to describe small bumps on the skin that can vary in color and texture but are characterized by their elevation above the surrounding skin. Papules can arise from a variety of conditions, including acne, eczema, and insect bites, making it crucial for estheticians and skin care professionals to accurately identify them.

The size specification of being smaller than 1 cm is significant because it differentiates papules from other types of skin lesions, such as nodules, which are larger and often deeper. Understanding this distinction helps professionals formulate appropriate treatment plans and educate clients on skin conditions. The elevated nature of papules is important in recognizing and diagnosing skin conditions, which is a fundamental skill in esthetics.