Hematidrosis and Hemolacria Phenomena in Clinical Contexts
Summary
Hematidrosis and hemolacria are exceptionally rare bleeding disorders characterised by the passage of blood through intact skin or ocular secretions, respectively. These phenomena most often arise in the setting of extreme emotional or physical stress, though idiopathic presentations are also reported. The prevailing hypothesis proposes that sympathetic hyperstimulation induces intense vasoconstriction of perisudoriferous and periorbital capillaries, followed by reflexive vasodilation, capillary rupture and extravasation of blood into sweat gland ducts or lacrimal apparatus. Clinically, affected individuals present with episodic blood-tinged sweat, tearfulness with haemorrhagic discharge and, less frequently, bleeding from the ears or nasal mucosa. Diagnosis hinges on exclusion of trauma, coagulopathy, infection and neoplastic processes, guided by detailed history, laboratory evaluation and imaging. Management remains largely supportive; recent reports suggest that β-adrenoceptor antagonists and stress-reduction strategies may attenuate episode frequency. The scarcity of cases underscores the need for collaborative registries and mechanistic research to inform standardised care pathways.
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Hematidrosis and Hemolacria Phenomena in Clinical Contexts publication trend
The graph below shows the total number of articles in hematidrosis and hemolacria phenomena in clinical contexts across all publications each year (not limited to Nature Index journals).
Technical terms
Hematidrosis: A rare condition characterised by the excretion of blood-tinged fluid through intact sweat glands, typically under extreme sympathetic stimulation.
Hemolacria: The phenomenon of bloody tears resulting from rupture of conjunctival or lacrimal capillaries in the absence of overt trauma or infection.
Vasoconstriction: The narrowing of blood vessels mediated by smooth muscle contraction, often under sympathetic nervous system control.
β-Adrenoceptors: G-protein-coupled receptors on vascular endothelium and smooth muscle that mediate the effects of catecholamines, targeted by β-blockers to modulate vasomotor tone.
References
- Idiopathic Bilateral Bloody Tearing. Case Reports in Ophthalmological Medicine (2015).
- Hematohidrosis in Pediatric Practice – a Case Report and Review of the Literature. Acta medica Lituanica (2024).
- HEMATOHIDROSIS-A RARE BLEEDING PHENOMENON. International Journal of Pharmacy and Pharmaceutical Sciences (2023).
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