Hers' Symptom

Neurology, Infectious Diseases

Also known as: Hers sign

Historical document, translated for reference. It reflects medical knowledge of the 1920s–30s and is not medical advice.

Hers' symptom is a diagnostic sign observed in cerebrospinal fluid. It involves the formation of air bubbles on the surface of the fluid when it is shaken with a solution of caustic potash, and is considered characteristic of tuberculous meningitis.

Encyclopedia entry (1928–1936)

HERS' SYMPTOM (Hers), consists of the appearance of air bubbles on the surface of cerebrospinal fluid when it is shaken in a test tube with a few drops of a solution of caustic potash; it is characteristic of tuberculous meningitis.

Cite this page

“Hers' Symptom.” Soviet Medical Encyclopedia. English translation of Bolshaya Meditsinskaya Entsiklopediya, 1st ed. (Moscow, 1928–1936), ed. N. A. Semashko. https://sovietmedicalencyclopedia.pages.dev/article/hers-symptom/