4 doctors weighed in:
What would cause a bruise with no known reason?
4 doctors weighed in

Dr. Gurmukh Singh
Pathology
2 doctors agree
In brief: Abnormal clotting
Abnormalities of blood clotting mechanisms, e.
g., low platelet counts, fragile blood vessels, low coagulation factors can result in bruising without trauma. If you are experiencing such symptoms, see your doctor.

In brief: Abnormal clotting
Abnormalities of blood clotting mechanisms, e.
g., low platelet counts, fragile blood vessels, low coagulation factors can result in bruising without trauma. If you are experiencing such symptoms, see your doctor.
Dr. Gurmukh Singh
Dr. Gurmukh Singh
Thank
Dr. Jeffrey Sider
Sports Medicine
In brief: Meds?
Are you taking any nsaids, Aspirin or blood thinners like Coumadin (warfarin) or lovenox? These can thin your blood and cause easy bruising.

In brief: Meds?
Are you taking any nsaids, Aspirin or blood thinners like Coumadin (warfarin) or lovenox? These can thin your blood and cause easy bruising.
Dr. Jeffrey Sider
Dr. Jeffrey Sider
Thank
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