CA125 measured during menstruation can be misleading

Irish medical journal · 2018 · vol. 111(4) , pp. 738 · PMID:30488683 · W2799485244
Case report OA: closed CC0 ⤵ 2 in-corpus citations
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This paper reports cyclical variation in serum CA-125 levels, showing a dramatic increase during menstruation in women with endometriosis.

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Abstract

The aim of these case reports and literature review is to report the importance of cyclical variation of serum CA-125 levels in two patients with endometriosis. Two case reports and a literature review of cyclical variation in serum CA-125 levels are discussed. There was significant variation in serum CA-125 levels taken during menses and mid-cycle in these two cases. Serum CA-125 levels increase dramatically during menstruation in women with endometriosis. This is important when assessing disease status.

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Condition tags

endometriosis

MeSH descriptors

CA-125 Antigen Endometriosis Membrane Proteins Menstrual Cycle Menstruation Adult Adult Biomarkers Biomarkers Biomarkers CA-125 Antigen CA-125 Antigen Diagnostic Errors Diagnostic Errors Endometriosis Endometriosis Female Female Humans Humans

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Cited by (2)

Cited by (2)

Source provenance

europepmc
last seen: 2026-10-16T06:09:50.462052+00:00
openalex
last seen: 2026-06-10T17:14:06.276822+00:00
pubmed
last seen: 2026-10-08T21:23:25.915063+00:00
License: CC0 · commercial use OK