Low Hematocrit (HCT): Causes and Blood Count Results

Overview

Hematocrit (HCT) measures what proportion of blood is made up of red blood cells. A low result may accompany anaemia but does not identify its cause.

How should results or symptoms be assessed?

Iron, vitamin B12 or folate deficiency, blood loss and chronic illnesses are among the possibilities. Haemoglobin, MCV and reticulocytes help guide assessment.

Practical next steps

Share your HCT together with haemoglobin and previous blood counts. Identify the cause before taking supplements or changing medication.

When is medical help needed?

Breathlessness at rest, chest pain, fainting or active bleeding requires urgent care.

Frequently asked questions

Can this article establish a diagnosis or treatment?

No. An individual history, examination and sometimes further tests are needed.

What should I prepare for a consultation?

Note when symptoms began, past reports, your medicines and questions so you can discuss them clearly.

Online advice cannot replace an in-person examination when one is required.

This article provides general information and is not individual medical advice.

Reference: https://medlineplus.gov/lab-tests/hematocrit-test/