Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
The pigment spot categories. Category 1: no pigment spots. Category 2: between 1 and 2 pigment spots. Category 3: more than two pigment spots. Any well-demarcated lesion that ranged in colour from tan to dark brown was considered a pigment spot. The black arrows illustrate example pigment spots.
