Polycythaemia (Erythrocytosis)

Investigation of high haemoglobin/haematocrit.

Reviewed by Dr Kola Tytler MBBS CertHE MBA MRCGP (General Practitioner)
Last reviewed: 21 October 2025
Haematology

Clinical Guidelines

CKS: Diagnosis of Polycythaemia/erythrocytosis
National
CKS: Management of Polycythaemia/erythrocytosis
National
CKS: Polycythaemia/erythrocytosis
National
A guideline for the diagnosis and management of polycythaemia vera (British Society for Haematology, 2019)
Local
Guidelines for the diagnosis, investigation and management of polycythaemia/erythrocytosis (British Society for Haematology, 2005)
Local
NICE Clinical Knowledge Summary: Polycythaemia/erythrocytosis
Local