Junctional, compound, and intradermal nevi are benign lesions and should not be symptomatic. Symptoms such as itching or pain may indicate transformation to malignant melanoma (MM). Junctional nevi are usually macules, although sometimes they are slightly elevated. Compound nevi are macules or papules. Intradermal nevi are papular. Both lesions are symmetric, have sharp borders, and are uniformly pigmented tan to dark brown or even black (Fig. 37-1). Intradermal nevi may be nonpigmented, pink, or tan (Fig. 37-2). They are also sharp-bordered, generally measure 1 to 6 mm in diameter, and do not undergo rapid enlargement or other sudden changes in appearance.