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
Hair that snaps along the shaft rather than falling from the root. It looks like thinning but the follicle is fine.
Who gets it
Anyone using heat, bleach, relaxers or rough handling.
Signs to look for
- Short broken pieces without a white bulb
- Split ends, frizz
- Uneven lengths
Common causes and triggers
- Heat styling
- Bleach and chemical treatments
- Tight brushing
- Rarely, inherited shaft disorders
How it is diagnosed
- Look at shed hairs: no root bulb = breakage
Treatment and care options
These are the options commonly discussed. What suits you depends on your diagnosis — a dermatologist can help you choose.
- Less heat, fewer chemical services
- Conditioner and bond-building care
- Gentle detangling
Outlook
Fully reversible with better care as new hair grows.
When to see a doctor
Rarely needed unless hair is unusually fragile from birth.
Not sure what's behind your thinning?
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.