What are common signs at each Norwood stage?

Norwood 1 to 2 typically involves minimal or mild temple recession. Norwood 3 to 4 involves more established recession and often crown thinning. Norwood 5 to 7 describes increasingly extensive loss across the frontal and crown areas.

Is hair transplant the only option at advanced Norwood stages?

Not necessarily, but non-surgical treatments generally have more limited potential once large areas contain little viable hair. Specialist assessment can determine whether transplantation or cosmetic alternatives are appropriate.

Male Hair Loss Guide

Norwood–Hamilton Scale for Hair Loss

Q: What is the Norwood–Hamilton Scale?

The Norwood–Hamilton Scale is a classification system used to describe common patterns and stages of male pattern baldness, ranging from minimal recession to advanced hair loss.

Q: Does everyone progress to Norwood 7?

No. Male pattern baldness varies considerably between men. Some remain at an earlier Norwood stage for many years while others experience more extensive progression.

Understand the stages of male pattern baldness, identify where your hair loss may sit on the Norwood scale and explore the options commonly considered at each stage.

Stages 1–2 Early recession and mild thinning

Stages 3–4 Established recession and/or crown thinning

Stages 5–7 Advanced male pattern hair loss

The Norwood–Hamilton Scale is a widely used classification system for describing the progression of male pattern baldness, also known as androgenetic alopecia.

It ranges from very little visible recession through to extensive loss across the top of the scalp. The scale can help you recognise a pattern, track changes over time and set more realistic expectations about treatment.

It is important to remember that the Norwood scale is a classification guide rather than a medical diagnosis. Not every man progresses through every stage, and the speed of hair loss varies considerably.

Norwood Hamilton scale showing stages of male pattern baldness — The Norwood–Hamilton Scale illustrates common patterns of temple recession, crown thinning and progressive male pattern hair loss.

Treatment Timing

Is it too late to treat hair loss?

Not necessarily. Earlier stages generally provide more opportunity to preserve existing hair because more follicles are still producing visible strands. As male pattern baldness becomes advanced, expectations need to change and surgical or cosmetic options may become more relevant.

Find Your Stage

Understanding the Norwood stages.

The practical options available to you can change considerably depending on how far hair loss has progressed.

1–2 Early Stage

Norwood 1–2

Hair density is generally still good, but there may be mild recession around the temples or the beginnings of a more mature hairline.

Focus: early intervention and preserving density
Options: minoxidil, appropriate medical treatment, scalp care and nutritional support
Goal: slow progression and maintain existing hair

Learn about DHT →

3–4 Early–Mid Stage

Norwood 3–4

Temple recession is more pronounced and crown thinning may now be clearly visible. There is usually still substantial existing hair available to preserve.

Focus: stabilising loss and protecting remaining density
Options: established treatments, microneedling, LLLT, scalp care and nutritional support
Goal: reduce further progression and improve existing hair where possible

Explore hair loss treatments →

5+ Advanced Stage

Norwood 5–7

Frontal recession and crown loss are extensive, and the bridge of hair separating these areas may become very thin or disappear.

Focus: realistic cosmetic improvement and long-term planning
Options: specialist assessment, transplantation where suitable, hair fibres or other cosmetic approaches
Goal: choose options appropriate to the amount of viable hair remaining

Supplements are unlikely to restore advanced bald areas.

Practical Guide

How to use the Norwood scale.

Use it as a reference point rather than treating the number as a diagnosis.

STEP 01 Compare

Compare your hairline and crown with the closest pattern in the Norwood diagram.

STEP 02 Photograph

Take consistent photographs under similar lighting so you can track changes objectively.

STEP 03 Build a Plan

Choose a realistic routine and use it consistently rather than frequently changing treatments.

STEP 04 Review

Allow sufficient time to assess progress and seek professional advice if the pattern is unclear or unusual.

Norwood 1–4

Drug-free support for earlier-stage thinning.

HR23+® is a comprehensive, non-medical hair supplement developed for men experiencing early-stage thinning and excessive shedding.

Nutritional support is most relevant while there is still substantial existing hair to support, which is why HR23+ is primarily positioned for men in the earlier stages of hair loss.

23 carefully selected ingredients
Supports normal hair and follicle health
Designed for ongoing nutritional hair support
Can complement a wider hair-loss routine

Discover HR23+ →

HR23+ is not intended to restore hair in areas of established, advanced baldness.

HR23+ premium hair supplement for early stage male hair loss

Common Questions

Norwood scale FAQs.

What is the Norwood–Hamilton Scale?

It is a classification system used to describe common patterns and stages of male pattern baldness, ranging from minimal recession to advanced loss across the top of the scalp.

Which Norwood stages are easiest to treat?

Earlier stages generally provide more opportunity to preserve existing hair because affected follicles may still be producing visible strands. Advanced bald areas are considerably harder to restore without surgery.

Does everyone progress to Norwood 7?

No. Male pattern baldness varies considerably. Some men remain at an earlier stage for many years, while others experience more extensive progression.

Is a hair transplant the only option at advanced stages?

Not necessarily, but non-surgical treatments have more limited potential once large areas contain little viable hair. A specialist can assess whether transplantation or cosmetic alternatives are appropriate.