I have sero-negative arthritis too. However I don't recall ever having bruises around my joints. I have had vessels to pop in my fingers and look like a bruise.
Do you feel a sudden painful sting and see a sudden bruised spot?
Lupus, RA, Fibromyalgia, Glaucoma, Asthma, Hypothyriodism, Sleep Apnea, Depression, Allergies, diabetes, and benign familia tremors
When life throws you lemons....
Pick them up and throw them right back at them! :))