The Norwood Scale: Male Hair Loss Stages 1–7

The Hamilton–Norwood scale is the standard way of describing how male pattern hair loss progresses — from a full hairline at stage 1 to a horseshoe of hair around the sides and back at stage 7. Knowing roughly where you sit makes the choices ahead a lot clearer. This page explains each stage in plain English, gives an honest picture of what a hair transplant can realistically do at each one, and shows where a hair system fits.

What the Norwood scale is

James Hamilton described the pattern of male hair loss in the 1950s, and O’Tar Norwood revised it into the seven-stage scale still used today. It maps the two things that usually happen together: the hairline receding at the temples, and hair thinning at the crown. Stage 3 has a separate “vertex” version for men who lose hair at the crown first, and there are “Type A” variations where the hairline moves straight back without a separate bald patch at the crown.

Male pattern hair loss is common and it is not unusual to start young. In Australia it affects roughly one in five men in their twenties, one in three in their thirties and close to half of men in their forties. Two things are worth saying plainly: the scale describes what is visible rather than diagnosing anything, and it is a rough tool — different assessors looking at the same head do not always land on the same number.

The Norwood stages, 1 to 7

These are ReGain My Hair’s own illustrations, drawn to the same head, angle and hair colour so you can compare the stages side by side.

Illustration of the top of a man's head at Norwood stage 1: a full, low hairline with no recession at the temples and hair covering the whole crown.
Stage 1A full hairline with no noticeable recession. The hairline sits low across the forehead, the temples are filled in and the crown is covered.
Illustration of the top of a man's head at Norwood stage 2: slight hair recession at both temples, with the rest of the hairline and the crown still covered.
Stage 2Slight recession at the temples — often called a mature hairline. Very common in men in their twenties and thirties, and not always a sign of ongoing loss.
Illustration of the top of a man's head at Norwood stage 3: deep recession at both temples forming an M-shaped hairline, with hair still covering the crown.
Stage 3The first stage most people would describe as balding. The temples recede further back, leaving an M, U or V shape. The crown is usually still covered.
Illustration of the top of a man's head at Norwood stage 3 vertex: a mild hairline with a separate round bald patch at the crown.
Stage 3 VertexThe hairline is around stage 2, but a bald patch has appeared at the crown (the vertex). Loss at the crown and loss at the front can move at different speeds.
Illustration of the top of a man's head at Norwood stage 4: a receded hairline and a larger bald crown, separated by a band of hair across the middle of the scalp.
Stage 4The hairline has moved further back and the crown patch is larger. A band of hair still separates the front from the crown.
Illustration of the top of a man's head at Norwood stage 5: larger bare areas at the front and crown with a narrow, thinning band of hair between them.
Stage 5The bare areas at the front and the crown are both larger, and the band of hair between them is narrower and thinner than at stage 4.
Illustration of the top of a man's head at Norwood stage 6: the front and crown have joined into one bare area across the top, with hair remaining around the sides and back.
Stage 6The band between the front and the crown has gone. The bare areas have joined into one across the top, with hair remaining at the sides and back.
Illustration of the top of a man's head at Norwood stage 7: only a narrow horseshoe of hair around the sides and back, with the whole top of the scalp bare.
Stage 7The most advanced stage — a narrow horseshoe of hair around the sides and back, with the top of the scalp bare. The remaining band also sits lower on the head.

What each stage means for your options

There is no Norwood stage where a hair transplant is automatically ruled out. Even at stage 7, surgery happens. What changes as the stages progress is donor supply — the amount of permanent hair available at the back and sides — so the goal shifts from full density towards strategic coverage.

Stage Hair transplant reality What a hair system offers here
Stages 1–2 Not usually needed — loss is minimal and donor supply is at its most abundant. Surgeons generally prefer to wait until the pattern is stable, because loss at this age is often still moving. Not usually needed.
Stage 3 and 3 Vertex Often among the best stages for surgery. The area to cover is still small, donor supply comfortably covers it, and natural-looking outcomes are common. Optional. Useful if you would rather not have surgery, or you want to see a fuller look now while you take your time deciding.
Stage 4 Still a strong stage for surgery. Published graft estimates for this stage commonly sit around 2,500–4,000. Planning matters, because the hair around a transplanted area can keep thinning. A practical option for coverage straight away, without surgery.
Stage 5 Still a good candidate in many cases, but covering both the front and the crown at full density may take more than one session, and a surgeon may choose to prioritise the front. Useful for even coverage across the whole top from day one, or as an alternative to surgery.
Stage 6 Possible — but donor supply is now the limiting factor. Surgeons commonly focus on strategic areas, usually the front third to frame the face, rather than full coverage everywhere. Particularly useful here. Coverage across the whole top does not depend on how much donor hair you have.
Stage 7 Possible in many cases, but the maths is tight. Commonly cited lifetime scalp donor supply is about 6,000–8,000 grafts, while full density across a stage 7 scalp is often estimated at 9,000–10,000 or more. Outcomes are usually conservative and strategic rather than full coverage. Often the most practical way to get consistent, full-looking coverage across the top without the donor limits of surgery.

Candidacy is genuinely individual. It depends on your donor density, hair calibre, scalp characteristics, age and how quickly you are losing hair. Two men at the same Norwood stage can get very different advice. Only a qualified, board-certified hair transplant surgeon can properly assess it — and graft numbers quoted anywhere, including here, are published averages rather than a quote for your head.

Hair transplant vs hair system

These are two different kinds of thing rather than two versions of the same thing. One is surgery that uses your own hair; the other is a wearable piece that does not. Here is the honest comparison.

Point of difference Hair transplant Hair system
What it is Surgery. Hair follicles are moved from the back and sides of your own scalp to the thinning areas. Non-surgical. Hair on a fine base is shaped to your head and attached to the scalp with tape or adhesive.
Does it depend on donor hair? Yes. What can be achieved is limited by how much hair is available at the back and sides. No. The density and the area covered are built into the system.
How long until you see the finished look Most men see the outcome between six and nine months after surgery; for some it takes twelve. The same day it is fitted.
Coverage Transplanted density is typically well below native density, so surgeons plan where to spend the grafts. Chosen in advance, and consistent across the whole area the system covers.
Permanence The moved hair stays. The hair around it can keep thinning, so further sessions are sometimes needed. Worn, maintained and replaced. A system is a wearable item with a finite life.
Ongoing upkeep Medical follow-up, and often medication prescribed by a doctor to hold what is left. Regular refits, cleaning, tape or adhesive, and replacement systems over time.
Cost shape Large one-off cost, sometimes repeated for later sessions. Lower to start, ongoing over time.
Can you change your mind? No. Surgery cannot be undone. Yes. It can be removed.
Who decides if it suits you A qualified, board-certified hair transplant surgeon. You do, with a fitting appointment to check the base type, size and match.

Common questions

What is the Norwood scale?

The Hamilton–Norwood scale is a seven-stage picture chart used to describe how far male pattern hair loss has progressed. James Hamilton described the pattern in the 1950s and O’Tar Norwood revised it in the 1970s. It is a way of describing what is visible — not a diagnosis, and not a prediction of where you will end up.

What is Norwood stage 3?

Stage 3 is the point most people would first describe as balding. The hairline has receded at both temples into an M, U or V shape, and those areas have little or no hair. The crown is usually still covered at this stage. When the hairline is milder but a bald patch has appeared at the crown instead, that is called stage 3 vertex.

How do I know which Norwood stage I am at?

Compare your own hairline and crown with the illustrations above — take a photo from the front, the top and the back in good light, because the crown is hard to judge in a mirror. Bear in mind that the scale is a rough guide: two men at the same stage can look quite different, and even experienced assessors do not always agree on the same number. Only a qualified surgeon or dermatologist can assess your scalp properly.

Can you get a hair transplant at Norwood 6?

Yes, in many cases. Stage 6 is not automatically ruled out. What changes is the maths: the bare area is now large and the donor hair at the back and sides is limited, so surgeons usually concentrate on strategic areas — most often the front third, to frame the face — rather than promising full coverage everywhere. Whether it suits you depends on your donor density, hair calibre, age and how fast you are losing hair. Only a qualified surgeon can tell you.

Can you get a hair transplant at Norwood 7?

In many cases, yes — but the maths is tight. Commonly cited lifetime scalp donor supply is around 6,000–8,000 grafts, while covering a stage 7 scalp at full density is often estimated at 9,000–10,000 grafts or more. That gap is why surgery at this stage is usually planned as conservative, strategic coverage rather than a full head of hair. As the American Academy of Dermatology puts it, a full head of hair may be unrealistic, but a fuller head of hair can be the goal.

Hair transplant or hair system — what is the difference?

A hair transplant is surgery that moves your own follicles from the back and sides to the top, so what it can achieve is limited by your donor supply, and the finished look takes six to twelve months. A hair system is a non-surgical piece of hair on a fine base, attached to the scalp; it does not use your own donor hair, it looks finished the day it is fitted, and it can be removed. They are different kinds of thing, and one is not simply better than the other.

Does a hair system stop hair loss?

No. A hair system is cosmetic coverage. It sits over the scalp and does not change what is happening to the hair underneath. Some men wear a system on its own; others wear one alongside medication prescribed by their doctor. Any question about slowing hair loss is one for a doctor or dermatologist, not for us.

Can you wear a hair system at any Norwood stage?

Yes — from early thinning through to stage 7. What changes with the stage is the size of the system, the base type that suits your scalp, and how it is blended with the hair you still have. That is what a fitting appointment is for.

Where this information comes from

The medical and surgical information on this page is drawn from dermatological and hair-restoration sources rather than from us. Graft and donor-supply figures are commonly published averages and vary between sources.

Explore men’s hair systems

Non-surgical coverage that does not depend on donor supply, at any stage of the scale.

Explore Men’s Hair Systems