Fibrinogen
A clotting protein that also rises with inflammation.
What it is
Fibrinogen is the raw material of blood clots and one of the proteins the liver increases during inflammation, so it is read both as a clotting factor and an inflammatory marker.
Why it matters
Low levels matter for bleeding and clotting assessment; raised levels most often reflect inflammation and are interpreted with CRP.
This guide is educational only and cannot diagnose you. Discuss results, especially anything outside your laboratory’s reference interval, or that does not match how you feel, with a GP or other appropriately qualified clinician.
This guide is educational only and cannot diagnose you. Discuss results, especially anything outside your laboratory’s reference interval, or that does not match how you feel, with a GP or other appropriately qualified clinician.
How it affects the body
Fibrinogen is converted to fibrin, the mesh that stabilises a clot.
For athletes
Fibrinogen is not a training marker; persistently unusual results belong with a clinician, not a programme change.
Related tests
No published panels currently list this marker.