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An extremely rare condition characterised by the sweating of blood, which is said to occur when a person is facing death or other highly stressful events. It has been seen in prisoners before execution and occurred during the London Blitz.

Hematohidrosis is attributed to rupture of the capillaries surrounding sweat glands, with oozing of blood into the glands and out the sweat ducts.
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.


(he?ma-) (hem?a-to-hi-dro'sis) [? + hidros, sweat, + osis, condition] Hemathidrosis.
Medical Dictionary, © 2009 Farlex and Partners