Henoch-Schönlein purpura ("hen-awk shern-line purr-purr-ah") is a rare condition, usually seen in children, that causes blood vessels to become inflamed.
Our Health A-Z contains more information on Henoch-Schönlein purpura.
Osteoarthritis is a condition that causes joints to become painful and stiff.
Our Health A-Z contains more information on Osteoarthritis.
Important: If you have these symptoms, they may be unrelated to any of these conditions listed. If you are concerned about your symptoms then you should see a doctor.