Phlebotomy

The techniques used to draw blood from a vein for diagnostic purposes or for treatment of certain blood disorders such as erythrocytosis, hemochromatosis, polycythemia vera, and porphyria cutanea tarda. 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.

Yes. Phlebotomy is also referred to as Venesection, Venesections, Venipuncture, Venipunctures 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.

Phlebotomy falls under the broader medical category "Analytical, Diagnostic and Therapeutic Techniques and Equipment" in the MeSH hierarchy (tree numbers: E01.370.225.998.110.625, E02.800.558, E04.665.150.625). Browsing the related concepts on this page takes you to neighbouring topics in the same branch of medicine.

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