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.
Photograph of a 7-year-old boy with coexistent sickle cell disease (SCD) and juvenile idiopathic arthritis (JIA) showing arthritis of the proximal interphalangeal joints and wrist joints.