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Author: Dr Duncan Lyons, Resident Medical Officer, Gold Coast University Hospital, Gold Coast, Queensland, Australia. Medical Editor: Dr Helen Gordon, Auckland, New Zealand. DermNet Editor in Chief: Adjunct A/Prof Amanda Oakley, Dermatologist, Hamilton, New Zealand. Copy edited by Gus Mitchell. July 2020.
Haematohidrosis is characterised by self-limiting sweating of blood from intact skin. Patients may suffer from recurrent episodes .
Haematohidrosis (US spelling hematohidrosis) may also be called haemidrosis (hemidrosis).
Haematohidrosis is rare.
The cause of haematohidrosis is unknown. It has been associated with periods of stress or anxiety [2,3]. It has been suggested that the peripheral blood reaches the skin’s surface through the sweat glands or hair follicles .
Haematohidrosis has been reported to occur at several different sites on the body simultaneously. The amount of bleeding is typically small. It has been reported to involve the ears (blood otorrhoea), eyes (tear ducts), limbs, trunk, palms, and soles [1–5].
The differential diagnosis of haematohidrosis includes :
The diagnosis of haematohidrosis may be difficult due to its episodic nature. Investigations may include :
Reported treatments include [1,4,5]:
Overall, the prognosis for hematohidrosis is good, as it is usually self-limiting .
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