Encyclopedia · Shedding

Iron deficiency hair loss

Low ferritin shedding

Updated 2026-09-29 · Educational only, not a diagnosis

Medical facts, drug details and treatment options on this page have not been independently medically reviewed.

What it is

Low iron stores (ferritin) are linked with increased shedding, especially in women with heavy periods or plant-based diets.

Who gets it

Menstruating women, people with low-iron diets, frequent blood donors, some athletes.

Signs to look for

  • Diffuse shedding
  • Tiredness, pale skin, brittle nails

Common causes and triggers

  • Heavy periods
  • Low dietary iron
  • Poor absorption (e.g. celiac disease)

How it is diagnosed

  • Ferritin and complete blood count

Treatment and care options

These are the options commonly discussed. What suits you depends on your diagnosis — a dermatologist can help you choose.

  • Iron supplements only if a test shows deficiency
  • Iron-rich foods with vitamin C

Outlook

Shedding often improves over months once stores recover.

When to see a doctor

Before taking iron — too much iron is harmful.

Frequently asked questions

Should I take iron for hair loss?

Only after a blood test confirms low levels.

Not sure what's behind your thinning?

Important

This content is for educational purposes only and is not medical advice. It is not intended to diagnose, treat, cure or prevent any disease. Speak with a qualified healthcare professional about your individual situation.