Norwood Scale

What is the Norwood Scale?

Seven Stages of Male Hair Loss

The Norwood Scale, or the Hamilton-Norwood Scale to give its full name, was devised by Dr. James Hamilton in the middle of the 20th century as a way to categorise levels of baldness.

Medical professionals continue to use the scale to determine what stage their patients male pattern baldness is at, and from their suggest the best hair restoration options.

The Norwood Scale covers seven main stages of baldness, with a handful of sub-categories in between. The seven classes of baldness are:

Norwood Scale Surgery Group

Stage 1

A full head of hair with no hair loss at all, typical of men in their 20s-30s
Norwood Scale Surgery Group
Norwood Scale Surgery Group

Stage 2

A slight hairline recession usually observed in more mature men around the age of 40. This is also when the ‘M’ shape begins to appear as hair initially recedes from the temples.

Norwood Scale Surgery Group
Norwood Scale Surgery Group
Norwood Scale Surgery Group

Stage 3

Men in their 50s will experience the ‘M’ shape on the forehead becoming stronger, and thinning on the crown of the head tends to start happening.
Norwood Scale Surgery Group
Norwood Scale Surgery Group

Stage 4

Hair recedes further from the temples, creating an even stronger M-shape, with the remaining middle section of hair often thinning at this time too.
Norwood Scale Surgery Group
Norwood Scale Surgery Group

Stage 5

Hair has receded further back away from the temples, and the strip of hair in the middle of the ‘M’ may have become an isolated patch.

Norwood Scale Surgery Group

Stage 6

Hair continues to recede backwards, and the strip or patch of hair at the front of the head has disappeared completely.
Norwood Scale Surgery Group

Stage 7

The most severe category of pattern hair loss, this is when there is no hair left on the top of the scalp, and only strips left at the sides of the head.

If you’re unhappy with hair loss and thinning, there are treatments available to help, including hair loss medication and hair transplants. To find out more and to have a confidential chat with one of our friendly team members, get in touch with Surgery Group by click the button below.

Keeping it simple

Norwood Scale

When it comes to image and body confidence, for many men, a receding hairline is one of their biggest issues and something a lot of us tend to be insecure about. There is no need to feel embarrassed about hair loss at any age – it’s a 100% natural consequence of genetics and ageing, and usually doesn’t indicate any underlying health issues.

However, some men may find they wish to restore their hair, particularly if they’ve experienced premature hair loss, or have lost hair due to a medical condition.

Whatever your reason for wanting to restore hair, whether it’s to give you more confidence or during recovery from an illness, the Norwood Scale is a helpful tool for determining levels of baldness, which then allows you to make a decision regarding the severity of the issue. Read on to find out just how common hair loss is in men, as well as a closer look at the Norwood Scale.

Causes of Hair Loss in Men?

The primary cause of hair loss in men is male pattern baldness, which occurs in most men at some point in their lives, generally when they’re over the age of 50. There are several other reasons why hair loss may occur, though, including:

Norwood Scale Surgery Group

Whatever the reason, experiencing hair loss can be a difficult period in a man’s life. If hair restoration is of interest to you, read on!

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Keeping it simple

The Bottom Line

However you experience hair loss, it’s important to remember that every person deals with it in their own way, and is affected in a different way. Some can accept it and feel perfectly comfortable with going bald while others may feel insecure and self-conscious as a result.

Male pattern baldness is completely normal  and is simply a natural result of growing older. However, if you feel unable to deal with it, you have a medical condition which has caused the baldness to worsen, or you’re experiencing premature balding, two popular solutions you may want to consider are hair loss medication or a hair transplant.

If you’re interested in these options, remember to always visit a reputable medical professional and ensure you’re fully informed on your options before committing to any hair restoration program.


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When you book with Surgery Group you know that you are coming to see a surgeon and not a salesman

Norwood Scale Surgery Group
Working with COVID-protected facilities

Working Safely

  • Routinely asking patients for relevant COVID-19 history of their own health and people they are in contact with. It is important that patients provide accurate information.
  • Following social distancing guidelines by limiting the contact of patients with one another whether in consultation or in a procedure and will arrange waiting room seating accordingly.
  • Using suitable equipment/PPE (Personal Protective Equipment) as recommended by the Centre for Disease Control (CDC) or another equivalent governmental agency.
  • Routinely using relevant health histories and daily temperature monitoring of all clinic staff and patients as part of their strategy to prevent contagion. Additionally, and where available, follows all government guidelines on use of testing to monitor staff.
  • In addition to using proper PPE, each clinic uses appropriate cleansing, disinfecting and sterilization procedures throughout the office/clinic. Also, uses proper waste disposal methods for any materials that could be contaminated.
  • Advising patients of handwashing protocols in the office/clinic and how to change gloves, gown and masks.
  • Assuring the public that the staff have received additional training with regards to proper COVID-19 infection control methods
  • And perhaps most importantly, the surgeon you have chosen is the one performing the surgical steps of your procedure, rather than delegating it to unlicensed technicians.


Clinic Advice

Regarding COVID19, we are working with selected COVID-protected facilities who have now reopened. These clinics have started a phased return model for a new normal with various safety measures in place including a limited number of procedures, reduced footfall through the clinic and enhanced PPE for staff. On the day, you will be asked to complete a COVID questionnaire and have your temperature taken on entry, as well as being asked to wash your hands. You will be asked to wear a face mask so that theoretically you are protected and you protect staff members in case anyone happens to be positive whilst asymptomatic.

Surgery Group have adopted guidelines from the International Society of Hair Restoration Surgery for use in all clinics taking into account UK law and each clinic has completed a COVID19 risk assessment of the patient journey through the clinic and taken steps to minimise risk, and we hope that by doing so, the risk of contracting coronavirus is significantly less than your weekly supermarket shop, however, it is not possible to guarantee that the risk of catching it is zero, such as in the nature of the virus.

To be clear, the government’s advice for the time being remains to stay at home unless you need to leave the house for one of 4 reasons including “any medical need” –

Corona Virus Government Advice

Without specific national guidance on hair transplant clinics, we deem it safe to offer the service in a limited capacity with the measures we have taken, but it is up to you to decide if leaving the house to attend a hair transplant clinic constitutes a “medical need”.