osler nodes

Osler nodes are small, tender, raised bumps that appear on the fingers or toes and are often associated with infections like infective endocarditis. They result from immune system activity causing tiny blood vessel inflammation, leading to the formation of these painful spots. Typically, Osler nodes are reddish or purple, and they may be sensitive to touch. Their presence indicates an ongoing immune response related to infection and helps doctors identify and diagnose certain systemic infections.