Hemoptysis (also known as Hemoptyses): Expectoration or spitting of blood originating from any part of the RESPIRATORY TRACT, usually from hemorrhage in the lung parenchyma (PULMONARY ALVEOLI) and the BRONCHIAL ARTERIES.

NIH MeSH · D006469Diseases

Hemoptysis

Also known asHemoptyses

Definition

Expectoration or spitting of blood originating from any part of the RESPIRATORY TRACT, usually from hemorrhage in the lung parenchyma (PULMONARY ALVEOLI) and the BRONCHIAL ARTERIES.

MeSH classification

  • C08.381.348
  • C23.550.414.896
  • C23.888.852.430

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Common questions about Hemoptysis

What does Hemoptysis mean in medicine?
Expectoration or spitting of blood originating from any part of the RESPIRATORY TRACT, usually from hemorrhage in the lung parenchyma (PULMONARY ALVEOLI) and the BRONCHIAL ARTERIES. This definition is taken from the National Library of Medicine's MeSH (Medical Subject Headings) 2026 release, which is the standard vocabulary used to index PubMed and most medical literature.
Is Hemoptysis known by any other names?
Yes. Hemoptysis is also referred to as Hemoptyses in different clinical, research and patient-facing contexts. The MeSH descriptor groups all of these synonyms under a single canonical concept so research and records stay consistent.
Where does Hemoptysis sit in the medical classification?
Hemoptysis falls under the broader medical category "Diseases" in the MeSH hierarchy (tree numbers: C08.381.348, C23.550.414.896, C23.888.852.430). Browsing the related concepts on this page takes you to neighbouring topics in the same branch of medicine.
Where can I get a plain-language explanation of Hemoptysis?
For a plain-language explanation of Hemoptysis - including symptoms, treatments and what it means for an Indian patient - ask GoDavaii's Health AI. It works in 22+ Indian languages, is free and needs no signup. Tap "Ask GoDavaii AI about Hemoptysis" above.

Source: NIH MeSH 2026 (D006469) — National Library of Medicine, public domain. View official MeSH record ↗