---
title: "Monocyte-to-Lymphocyte Ratio (MLR): What It Means"
description: "MLR reflects immune balance from your CBC differential and can rise with inflammation or infection; order Quest labs with Vitals Vault and review in."
canonical: "https://www.vitalsvault.com/biomarkers/monocyte-to-lymphocyte-ratio-mlr"
last-updated: 2026-08-22
---

# Monocyte-to-Lymphocyte Ratio (MLR): What It Means

> MLR reflects immune balance from your CBC differential and can rise with inflammation or infection; order Quest labs with Vitals Vault and review in.

---

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