In short
The Norwood scale is the most widely used way to describe the stages of male pattern hair loss, from a full head of hair at stage 1 to extensive loss at stage 7. It helps patients and providers use a common language, but it is a description, not a diagnosis. Your stage is only one factor a provider considers when planning treatment.
If you have researched hair loss, you have probably seen the Norwood scale: a row of illustrated heads showing hair loss getting more advanced from left to right. It is the most common way to describe male pattern hair loss, and understanding it helps you have clearer conversations about your options.
What the scale describes
The Norwood scale runs from stage 1, a full head of hair with no significant recession, to stage 7, where only a band of hair remains around the sides and back. In between, the earlier stages show recession at the temples, the middle stages show frontal loss and crown thinning, and the later stages show these areas merging into more extensive loss.
Why it is useful, and its limits
The scale gives patients and providers a shared vocabulary. Saying you are around a certain stage is quicker than describing your hairline in detail. But it is only a description. It does not measure your donor density, your hair calibre or how your pattern might change in future, all of which matter far more when planning a transplant.
How it fits into planning
A provider uses your Norwood stage as a starting point, then assesses the donor area and considers your age and family pattern. A more advanced stage usually means more area to cover from a limited donor supply, so honest expectations are essential. Your stage helps frame the conversation; it does not decide the outcome on its own.
| Stage | Typical description |
|---|---|
| Stages 1–2 | Little to mild recession at the temples; often not yet noticeable |
| Stage 3 | Deeper temple recession; the point often considered early balding |
| Stages 4–5 | More frontal loss and thinning at the crown, which may merge |
| Stages 6–7 | Extensive loss with a band of hair remaining at the sides and back |
Common questions
Is the Norwood scale a diagnosis?
No. It is a descriptive classification that helps everyone use the same language. A provider still assesses your donor area, hair characteristics and pattern before advising on options.
Does a higher Norwood stage mean I cannot have a transplant?
Not necessarily, but a more advanced stage usually means more area to cover and a limited donor supply, so realistic planning matters. Only an in-person assessment can determine suitability.
Can I move up the scale over time?
Yes. Pattern hair loss can progress with age, which is why providers consider your likely future pattern, not just your current stage.
Sources
- Hair Transplant Practice Guidelines · DOI: 10.4103/JCAS.JCAS_104_20 · PMID: 34908769 · PMCID: PMC8611706
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