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Norwood scale

Kvinnlig DHI hårtransplantation

Frida Halvardsson

October 20, 2021

norwood scale

The Norwood scale also referred to as the Hamilton-Norwood scale, is a basic classification system used for the stepwise division of androgenetic alopecia (alopecia androgenetica) that results from an increase in the hormone DHT. Most men lose hair according to a specific pattern in the course of their lives. The scale paints a picture system that shows the different stages of hair loss. ‍

There are other classifications that doctors and scientists make use of. Some scales include both sexes, while others focus only on hair loss in women. The Norwood scale is the system most commonly used for male hair loss. One often uses the scale as a reference point when diagnosing the extent of hair loss. It allows you to determine which treatments are most suitable for the person who has alopecia.

The measuring scale was developed in the 1950s by a man named James Hamilton. It was later updated and improved by O'Tar Norwood in the 70s.

The different stages

The scale is divided into seven different stages. Each step measures the severity and pattern of your hair loss.

Stage 1

Neither noticeable hair loss or high bays.

Stage 2

The hairline has become a little higher, usually around the folds. This is often referred to as an adult or mature hairline.

Stage 3

The hair loss is now more evident. The first signs of clinical androgenetic alopecia begin to appear. The hairline has receded in the folds, creating the characteristic V, M or U shape.

Stage 4

Now the hair loss is significant. The hair at the top of the crown is thin or in some cases completely gone. The high folds and hair loss on the crown are separated by a strip of hair on both sides. The strips are connected to the rest of the hair.

Step 5

Stage 5 is similar to stage 4 but with more severe hair loss. There is still a strip of hair separating the folds and the bald crown. However, the strip is narrower, and the hair there thinner.

Step 6

The folds are now connected to the bald area on the crown. The strip of hair that previously separated these is now completely gone or, in some cases, very thin. There is hair on the sides of the head but the person is mostly bald at the front and on top.

Step 7

The most powerful stage of hair loss. The hair that remains is gathered in strips around the sides of the head but also it has become narrower. Hair is often thin and sparse.

What can you do to counteract your hair loss?

Hair loss treatments are most effective when done at an early stage. It is easier to slow down and prevent hair loss than it is to stimulate new hair growth. However, if heavy hair loss has occurred, a surgical procedure is the better choice.

The best treatment to prevent or slow hair loss is PRP (Platelet Rich Plasma). It is a simple procedure that is 100% natural and completely without side effects. Platelet rich plasma is extracted from the patient's own blood and injected into the patient's hair.

If you have already lost a lot of hair, it is Hair Transplant for you. Today's hair transplant is also a natural procedure that leaves less visible scar tissue and gives the customer a genuine result - for a lifetime. Do you feel that the hair has become a little thinner lately or that the folds sit a little higher than desired? Come to us for a free and unconditional consultation. During a consultation, we ask and answer questions as well as take a look at how your hair is doing. We have over 15 years of experience and have performed over 40,000 PRP treatments — we know what we are doing. You're welcome!