Free tools for bruises and fragile skin
Simple, free tools that work without login or upload and store nothing. They explain common patterns — they don't diagnose. If something worries you, talk to your doctor or pharmacist.
- Bruise color chart: what each color means
A free, printable bruise color chart with an interactive selector: red, purple, blue, green, yellow and brown — what each stage usually means, how long it lasts, why color can't precisely date a bruise, and warning signs.
- Medication bruising checker
A free, private checker: tick the medicines and supplements you take to see which can increase bruising, why, and what to ask your doctor — blood thinners, antiplatelets, NSAIDs, steroids, SSRIs and supplements. Information only.
- Purpura check: is it senile purpura or something else?
Four quick questions to see whether purple marks on your skin fit the typical pattern of harmless senile (actinic) purpura — or show signs that need a doctor. Free, private, information only.
More in this guide
- Bruise color chart: what each color means
A free, printable bruise color chart with an interactive selector: red, purple, blue, green, yellow and brown — what each stage usually means, how long it lasts, why color can't precisely date a bruise, and warning signs.
- Medication bruising checker
A free, private checker: tick the medicines and supplements you take to see which can increase bruising, why, and what to ask your doctor — blood thinners, antiplatelets, NSAIDs, steroids, SSRIs and supplements. Information only.
- Purpura check: is it senile purpura or something else?
Four quick questions to see whether purple marks on your skin fit the typical pattern of harmless senile (actinic) purpura — or show signs that need a doctor. Free, private, information only.