Which of the following lesions is raised with a diameter of less than 5 mm?

A papule is defined as a small, raised lesion on the skin that typically has a diameter of less than 5 mm. These lesions are usually solid and can vary in color, texture, and cause. They are often associated with conditions such as acne, eczema, and psoriasis.

In contrast, a macule is flat and not raised; it is a change in skin color without elevation. A bulla is a fluid-filled lesion that is larger than 5 mm, and a nodule is a solid lesion that is also larger and typically deeper than a papule. This distinction in size and characteristics helps in the clinical assessment and diagnosis of various skin conditions.