An official website of the United States government
Here’s how you know
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.
This picture shows reddish-purple, hard (indurated), painful nodules (erythema nodosum) that occur most commonly on the shins. These lesions may be anywhere on the body and may be ...