What is the size difference between a macule and a patch?

A macule is defined as a flat, discolored area on the skin that measures less than 0.5 cm in diameter, while a patch is similar but larger, measuring more than 0.5 cm. This distinction is crucial in dermatology for accurately describing skin lesions.

The correct answer reflects the standard definitions used in clinical practice to categorize these lesions based on size. Recognizing this difference is important for diagnosing various skin conditions, particularly in distinguishing between various types of skin changes that can arise.

Understanding this terminology aids health professionals in communicating effectively about skin findings, allowing for better treatment and management of dermatological conditions.