Research digest — not medical advice. Full disclaimer · How we rate evidence
Red Flags
If you experience these, seek immediate medical attention.
- •Bruising with no known cause in unusual locations
- •Bruises larger than a quarter without trauma
- •Family history of bleeding disorders
- •Bleeding from gums, nose, or in urine/stool
- •Petechiae (tiny red dots) appearing on skin
Overview
Bruising occurs when blood vessels under the skin break. Easy bruising can be normal with aging or thin skin, but can also signal blood clotting disorders or medication effects.
Possible Causes
Aging Skin
Skin thins with age, vessels more fragile.
Medication Effects
Aspirin, blood thinners, and steroids increase bruising.
Vitamin Deficiency
Vitamin C or K deficiency affecting clotting.
Platelet Disorders
Low platelets or platelet dysfunction.
Home Care
- Protect skin from bumps and injuries.
- Eat a balanced diet with adequate vitamins.
- Consider wearing long sleeves/pants for protection.
- Apply ice to fresh bruises to reduce swelling.
Research cited
Sources for this page are being compiled. Each research summary on Body Signals is backed by peer-reviewed literature — source links will be added as part of our ongoing editorial review.
Sidebar
When to see a doctor
- •Sudden increase in bruising frequency.
- •Bruises with other bleeding symptoms.
- •Large bruises appearing without injury.
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Medical Disclaimer
This is a research summary, not medical advice. Body Signals is an independent research digest — it summarises published research for informational purposes and is not a healthcare provider. Consult a qualified healthcare provider before making changes to diet, exercise, supplements, or medication — especially if you have existing conditions or take prescription drugs.