The Norwood Scale: Measuring Male Pattern Baldness
Identify your stage of hair loss to discover the right surgical or preventative treatments to restore your hairline and crown.
What Is the Norwood Scale?
The Norwood Scale (sometimes called the Hamilton-Norwood Scale) is the internationally recognized medical standard used to classify the stages of male pattern baldness.
Male pattern baldness typically follows a highly predictable pattern: it begins with a receding hairline at the temples, progresses to thinning at the crown (vertex), and eventually merges into a larger area of baldness. By identifying where you sit on this 7-stage scale, our surgeons can accurately determine your suitability for an FUE hair transplant and calculate the exact number of grafts required to restore your density.
The 7 Stages of Male Hair Loss
From early recession to advanced baldness, here is how the Norwood Scale breaks down the progression.
Early Stages: Prevention
No significant hair loss. The hairline is intact with no noticeable recession. Treatment is not required.
Mild recession at the temples. Often called a "mature hairline." This is the best time to begin non-surgical preventative treatments like Low Level Laser Therapy to halt further shedding.
Moderate Stages: Ideal for Transplant
Clinical baldness begins. The temple recession deepens into a distinct M, U, or V shape. A Stage 3 Vertex variation exists where hair loss primarily affects the crown.
Severe temple recession and crown thinning. A distinct band of hair still separates the receding front from the bald spot at the vertex.
The bridge narrows. The band of hair separating the front and the crown becomes significantly narrower and sparser. FUE transplantation is highly effective here.
Advanced Stages: Complex Restoration
The bridge disappears. The bald areas at the front and crown merge into one large, continuous area of hair loss.
Severe hair loss. Only a horseshoe-shaped band of hair remains around the back and sides of the head. Surgical options depend entirely on the density of this remaining donor hair.
How Many Grafts Will I Need?
If you sit between Stage 3 and Stage 6 on the Norwood Scale, you are likely an excellent candidate for an FUE Hair Transplant. Here are estimated graft counts based on your stage:
| Norwood Stage | Estimated Graft Requirement |
|---|---|
| Norwood 3 / 3 Vertex | 800 to 1,500 grafts |
| Norwood 4 | 1,200 to 1,800 grafts |
| Norwood 5 | 1,800 to 2,500 grafts |
| Norwood 6 | 2,500 to 3,500+ grafts |
These are estimates only. Your exact graft count will be confirmed at your free clinical consultation.
Treatments by Norwood Stage
Frequently Asked Questions
What is the Norwood Scale?
-The Norwood Scale (or Hamilton-Norwood Scale) is the leading medical classification system used to measure the extent of male pattern baldness. It features 7 primary stages that help surgeons diagnose severity and plan hair transplant procedures.
At what Norwood stage should I get a hair transplant?
+How many grafts do I need for my Norwood stage?
+Does the Norwood Scale apply to women?
+WHAT ARE YOU WAITING FOR?
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