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In women, hair loss does not usually create a clear bald area as it does in men. Instead, diffuse thinning appears on the top of the scalp, especially along the parting, while the hairline is often preserved. Because of this different pattern, a separate classification is used to assess female-pattern hair loss: the Ludwig scale.
The Ludwig scale describes the severity of thinning in three stages. It is a useful tool both for tracking how hair loss progresses and for evaluating treatment options.
Why is female-pattern hair loss different?
Genetic predisposition and hormones also play a role in female-pattern hair loss. But in women, follicle miniaturisation happens over a wider area and in a more scattered way. Hair loss in women also frequently has other causes behind it: thyroid disease, iron deficiency, polycystic ovary syndrome, and the hormonal changes after childbirth and during menopause.
That is why, whatever the Ludwig stage, the first step for female patients is to investigate the cause of hair loss. For more detail, see our what is hair loss page.
Ludwig 1 (mild)
The parting widens slightly and thinning begins on the top of the head. When the hair is parted, a little more scalp shows than before. At this stage it is often noticed only by the person themselves, and the hair can easily be styled to hide it.
A transplant is usually not needed at this stage. Investigating the cause, correcting any deficiencies and supportive treatments such as PRP or mesotherapy come first. Treatment started early has a more noticeable effect.
Ludwig 2 (moderate)
The parting widens clearly and thinning on top increases. Hair volume visibly decreases, and the scalp shows clearly, especially under strong light. Hiding the thinning starts to become difficult.
Medical and supportive treatments remain important at this stage. For patients with a strong donor area whose thinning is limited to a defined zone, a transplant may also be considered. Because implantation is done between existing hair, an unshaven approach with the DHI technique is usually preferred.
Ludwig 3 (advanced)
Density on top of the head is severely reduced, and the scalp clearly shows through the hair in this area. In some patients, distinct bald areas form. The hairline, however, is usually still preserved.
A transplant may be possible at this stage, but the condition of the donor area is decisive. In women, diffuse thinning sometimes also affects the back and sides of the head. In that case there is no guarantee that follicles taken from the donor area will be resistant to hair loss, and a transplant may not be recommended.
Suitability for a transplant
For female patients, the following conditions are generally required for a transplant:
- The cause of hair loss has been investigated and treatable causes addressed
- The donor area has sufficient density and is not affected by thinning
- Thinning is limited to a defined area
- Expectations are realistic
In cases such as a high hairline, receding temples, traction alopecia and scarring, a hair transplant gives women very good results. We describe our approach for female patients on our female hair transplant page.
How to track your stage
The easiest way to track thinning is to take photos at regular intervals in the same light and from the same angle. Photos taken from above with your hair parted in the middle show changes along the parting clearly. Photos taken a few months apart are also very useful for assessing how you respond to treatment.
Frequently asked questions
What is the difference between the Ludwig and Norwood scales?
The Norwood scale describes male-pattern hair loss — a receding hairline and bald crown. The Ludwig scale describes diffuse thinning in women.
What should I do at Ludwig stage 1?
First, investigate the cause of hair loss. Correcting deficiencies and supportive treatments are the most effective steps at this stage.
Is female-pattern hair loss reversible?
In early stages, treatment can slow hair loss and improve hair quality. Where follicles have been permanently lost, a transplant is needed.
Does menopause affect hair loss?
Yes. The hormonal changes of menopause can accelerate female-pattern hair loss.
The information on this page is for general guidance only; diagnosis and treatment decisions are made by a physician after examination. Results vary from person to person.