UNDERSTANDING HAIR LOSS
Understanding the Stages of
Hair Loss
Hair loss rarely happens all at once. It often develops gradually —
a receding hairline, widening parting, thinning crown or increasing scalp visibility.
Recognising the pattern and stage of hair loss can help you understand what may be happening and when it may be worth seeking professional advice.
FEMALE HAIR LOSS PATTERNS
Female Hair Loss: The Ludwig Scale
Female pattern hair loss can be subtle at first. You may notice your parting becoming wider, less volume when styling your hair, or more of the scalp showing through under bright light.
The Ludwig Scale helps illustrate how this type of thinning can progress, from early changes in density to more noticeable thinning across the upper scalp.
• Stage I-1 to I-3.
Often a milder degree of thinning which mainly affects the part line.
• Stage I-4.
This introduces thinning which can extend past the part line, but is mainly the mid-scalp area.
• Stage II-1 to II-2.
A moderate level of hair loss which is more noticeable.
Widening scalp visibility and reduced volume.
• Stage III-1 to III-2:
Advanced hair thinning with more pronounced visibility throughout the top-scalp area.
• Frontal:
Thinning predominantly affecting the frontal hairline and edges.
Not everyone follows the scale in exactly the same way, which is why the pattern, density and condition of your own hair matter more than a stage number alone.
MALE HAIR LOSS PATTERNS
Male Hair Loss: The Norwood–Hamilton Scale
For men, hair loss often begins with subtle changes around the temples, hairline or crown. Over time, these areas may become more pronounced or gradually begin to connect.
The Norwood–Hamilton Scale is commonly used to illustrate these changes, from early recession through to more advanced patterns of hair loss.
• Type 1. A typical head of hair with no loss.
• Type 2. Slight hairline recession.
• Type 3. More noticeable recession and an M-shaped hairline. Possible hair loss on the tempted and frontal area.
• Type 4. A more pronounced M shape with increased balding at the vertex.
• Type 5. Affecting a larger area than type 4, with the possibility of thinner hair overall. There is a further subtype which has more prominent frontal/temporal loss.
• Type 6. Extensive hair loss, including a larger bald spot on the crown and receding hairline.
• Type 7. The most advanced type, leaving a horseshoe-shaped pattern of hair along the sides and back.
Not everyone follows the scale in exactly the same way, which is why the pattern, density and condition of your own hair matter more than a stage number alone.
BEYOND THE SCALE
What Does Your Stage Mean for a Hair Transplant?
The scale can show where your hair loss sits visually, but it cannot tell us everything needed to plan a hair transplant.
During an assessment, we look beyond the stage itself — including how your hair loss is progressing, the quality and reserve of the donor area, hair calibre and density, scalp condition and the areas you would most like to restore.
01
Your current pattern
Where hair has been lost and which areas may continue to change.
02
Your donor potential
The quality, density and reserve available for transplantation.
03
What can realistically be restored
The likely graft requirement, priorities and a longer-term approach to preserving a natural result.
YOUR NEXT STEP
Wondering Where You Are on the Scale?
Hair loss does not always follow a textbook pattern. You may recognise elements of a Ludwig or Norwood stage without fitting neatly into one category.
Hair analysis and trichoscopy can look more closely at density, miniaturisation and the pattern of change to help build a clearer picture of what is happening:
Hair and scalp assessment
Donor evaluation
Indicative graft range
Individual treatment planning
SURGICAL SUITABILITY
Is a Hair Transplant Suitable for You?
Recognising your stage of hair loss is useful, but suitability for surgery is individual. Your pattern, progression, donor hair and longer-term needs all influence whether a hair transplant is appropriate — and when.
The aim is not simply to replace lost hair, but to plan appropriately for the hair you have now and the changes that may occur over time.
To discuss your hair loss pattern and surgical suitability, book a surgeon-led assessment with
Dr Feyroza Mustaeva.
Surgeon-Led Assessment, Marylebone, London