Updated 06 December 2016

How hair loss in men is diagnosed

How does a doctor diagnose alopecia (hair loss) in men?


The diagnosis is primarily clinical, that is, based on findings at examining the patient.

The hairless patches are typically painless, smooth and circular, with short broken hairs around the edges.

Read: New clue to baldness 

The nails may also be involved, with roughening and pitting.

Rarely, the eye may be affected. Biopsy of affected sites is rarely needed.

Blood tests may be done to establish whether there are any underlying auto-immune conditions that may have precipitated alopecia and which might need to be treated.

Read more: 

How can I stop my hair from falling out? 

Hair loss for men  

Key to genetic hair loss found