What autoimmune injuries can look like

A few weeks ago, I injured my hand - it's a bit of an embarrassing story as I was attempting to pet a farm animal I shouldn't have, and raked the back of my hand against a wire fence.
Prior to the onset of PsA, this would have merely been a scrape with a small bruise. But with an autoimmune disease, inflammation is often rapid and severe.
The swelling came up within 15 minutes and remained for two weeks, even with ice, Ibuprophen and cortisone cream.
Nothing was broken, but everyone who saw it was convinced I had broken bones because it was so swollen and as you can see looked so hideous.
One nurse, on seeing it, immediately asked if I had an autoimmune disease. She said that this sort of swelling is common and often an indicator, though sometimes not recognized by many in the healthcare community.
I'm sharing it just for informational purposes. Even if you injure yourself and it doesn't particularly hurt, in spite of the swelling, you should still see a doctor to make sure there's no reparable damage.