Bloodworks

Symptoms & complaints

Hair loss and your blood

Hair loss can have many causes, from hereditary predisposition to a deficiency or a hormonal disturbance. Blood testing can reveal a number of treatable causes. Below you read which blood values are relevant.

4 min readBy the Bloodworks editorial team

In short

  • Een lage ijzervoorraad (ferritine) is bij haaruitval de meest gevonden meetbare oorzaak, ook zonder bloedarmoede.
  • Schildklierproblemen en een tekort aan vitamine D of zink spelen minder vaak, maar zijn wel te meten.
  • Haaruitval loopt maanden achter op de oorzaak: wat u nu ziet, begon vaak drie maanden geleden.
  • Erfelijke haaruitval is niet in bloed te zien.

Afgegrensde kale plekken, een ontstoken of schilferende hoofdhuid of haaruitval in bosjes horen bij uw huisarts of een dermatoloog.

What you can measure

Not every cause is visible in blood. These are the values that most often explain something.

Recommended test

Aanbevolen bij haaruitval zonder duidelijke oorzaak

Iron Panel

5 markers

De ijzervoorraad eerst: dat is bij haaruitval de meest opbrengende meting.

  • Personal assessment by a registered doctor
  • Clear laboratory report, in plain language
  • No referral needed
  • 800+ blood draw locations

69

Plus 29,- blood draw fee per order, free from 225,-.

View this test

Common, measurable causes

These values are regularly linked to hair loss:

  • iron deficiency (low ferritin)
  • an underactive or overactive thyroid
  • a lack of vitamin D

In women and men, hormonal factors can also play a role. An abnormal value does not always explain the symptom, and not all hair loss is visible in blood.

When testing is useful

With sudden or increasing hair loss, especially combined with other symptoms such as fatigue, targeted blood testing can provide direction. If in doubt or with persistent symptoms, a visit to the GP or dermatologist remains important.

Frequently asked questions

Which blood values relate to hair loss?

Often relevant are iron/ferritin, thyroid function, vitamin D and sometimes hormones. Which ones are useful depends on your situation.

Will my hair loss stop if I correct a deficiency?

If a deficiency is the cause, correcting it may help. Often several factors play a role. Discuss the result and any treatment with a doctor.

Do I need to fast?

For these markers fasting is usually not needed. If in doubt we advise fasting; see our guide on fasting.

Sources

Recommended test

Aanbevolen bij haaruitval zonder duidelijke oorzaak

Iron Panel

5 markers

De ijzervoorraad eerst: dat is bij haaruitval de meest opbrengende meting.

  • Personal assessment by a registered doctor
  • Clear laboratory report, in plain language
  • No referral needed
  • 800+ blood draw locations

69

Plus 29,- blood draw fee per order, free from 225,-.

View this test

Read more

Customer service

Questions? We are happy to help!

Available on weekdays from 9:00 – 17:00