---
title: "Hair Thinning at Night: Causes, What Helps, and Lab Tests"
description: "Hair thinning at night is usually from shedding cycles, thyroid or iron issues, or scalp inflammation. Targeted labs available at Quest—no referral needed."
canonical: "https://www.vitalsvault.com/symptoms/hair-thinning-at-night"
last-updated: 2026-08-22
---

# Hair Thinning at Night: Causes, What Helps, and Lab Tests

> Hair thinning at night is usually from shedding cycles, thyroid or iron issues, or scalp inflammation. Targeted labs available at Quest—no referral needed.

---

Canonical HTML: https://www.vitalsvault.com/symptoms/hair-thinning-at-night
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