Hair Loss Causes and How to Identify Them Through Tests (Part 6)
Hair loss is often seen as a simple cosmetic issue.
However, it can actually be an important signal of your internal health.
I initially thought my hair loss was just due to stress.
But over time, I noticed patterns—it worsened during certain periods.
That’s when I started connecting it to my health checkup results.
From that point on, I began to see hair loss not just as an external issue, but as a reflection of my body’s condition.
Why Hair Loss Is More Than a Cosmetic Issue
While genetics play a role, there are many other contributing factors.
Nutrition, hormones, stress, and sleep all influence hair health.
Focusing only on external symptoms can lead to missed causes.
Main Causes of Hair Loss
- Genetics
- Hormonal changes
- Nutrient deficiencies
- Stress
- Lack of sleep
Among these, nutritional deficiencies can often be identified through testing.
What You Can Check Through Blood Tests
Many people think hair loss is only a dermatological issue.
In reality, blood tests can reveal underlying causes.
Imbalances in certain nutrients or hormones can directly affect hair growth.
Top 5 Lab Values to Check
- Ferritin (iron storage)
- Vitamin D
- Thyroid hormone (TSH)
- Zinc
- Protein levels
Ferritin and Vitamin D are especially important.
I personally experienced more severe hair loss when my ferritin levels were low.
Hair Loss by Age
In your 20s–30s, stress and nutrition are key factors.
In your 30s–40s, hormones begin to play a larger role.
After your 40s, multiple factors often combine.
Real-Life Insight
What stood out to me most was how closely hair loss followed my health metrics.
After improving my Vitamin D and iron levels, I noticed a reduction in hair loss.
This approach was much more effective than surface-level treatments.
Q&A
Q1. Is hair loss purely genetic?
A. No, lifestyle and nutrition also play major roles.
Q2. Can tests identify the cause?
A. Yes, many underlying issues can be detected.
Q3. What is most important?
A. Ferritin and Vitamin D.
Q4. Can it improve?
A. Yes, depending on the cause.
⚠️ Medical Disclaimer
This article is for informational purposes only and not medical advice.
