These sudden purple patches on my arms won’t stop appearing, and my doctor is booked until January. What’s happening?

The skin’s dermal layer contains blood vessels that are supported by collagen and elastin. As these proteins degrade with age, the vessels become more fragile. Minor bumps and injuries that wouldn’t have caused a bruise in younger years now lead to significant discoloration.

The thinning skin, coupled with decreased fat beneath the skin, offers less cushioning for these fragile vessels. This lack of protection makes even minor impacts more likely to result in purpura. Additionally, the skin becomes less elastic, meaning it doesn’t bounce back as easily from injuries, further contributing to the development of bruises.

Certain medications and supplements can exacerbate the development of purpura. Blood thinners, such as aspirin and warfarin, are commonly prescribed to older adults but can increase bruising by preventing blood from clotting normally. Nonsteroidal anti-inflammatory drugs (NSAIDs) like ibuprofen can also contribute to this issue.