Yes, Lupus can impact your vascular structure and function. This is the constant for me as I have a blood clotting disease - factor 13 (missing clotting fibrin). Prednisone is known for thinning skin, Vitamin C deficiency causes bruising and NSAIDs contribute as well. Brian, a Hematologist could do the workup to determine if there are underlying issues. Hope you find out what's causing this for your peace of mind.

When I start bruising like that it has to do with my clotting factors now since I am not taking any aspirin or ibuprofen or aleeve. I alternate between clotting or bleeding, so, it's a little nuts. It has something to do with the level of vitamin k and other clotting factors. If you aren't taking any NSAIDs, you probably need to see about getting labs drawn

I bruise all the time. I have to be so careful. I also sometimes wake up with a new bruise 🤷‍♀️ it is strange.

I can go to bed and wake up the next day wit bruises and have no idea how I got them

Prednisone (cortisteroids) also causes bruising.

https://www.healthline.com/health/thin-skin