Hair Loss Scale

Understanding the Hair Loss Scale: Norwood & Ludwig Classifications

Hair loss affects millions of men and women worldwide. While every person’s hair loss journey is unique, medical professionals use standardized scales to measure the severity and progression. The two most widely recognized are the Norwood Scale (for men) and the Ludwig Scale (for women).

Below, we break down each scale so you can better understand your stage of hair loss and what treatment options may be available.

Stages of the Norwood Scale

Stage 1 – No significant hair loss or recession.
Stage 2 – Early recession of the hairline, often near the temples.
Stage 3 – Deeper hairline recession; the first stage considered clinically significant hair loss.
Stage 4 – Further hairline recession with thinning at the crown.
Stage 5 – The bridge of hair separating crown and hairline begins to thin.
Stage 6 – Hairline and crown loss connect, leaving little coverage on top.

Stages of the Ludwig Scale

Stage 1 – Mild thinning on the crown with a slightly wider part.
Stage 2 – Noticeable thinning and decreased hair volume across the top.
Stage 3 – Advanced thinning with a see-through appearance at the crown.

Why the Hair Loss Scale Matters

Identifying your stage of hair loss is the first step toward finding the best restoration plan. Whether you’re a man tracking changes on the Norwood Scale or a woman comparing your hair density on the Ludwig Scale, these classifications provide valuable insight into:

☑ How advanced your hair loss is

☑ Which treatments are most effective for your stage

☑ What results you can expect from different solutions

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3500 DePauw Blvd. Suite 2011 Indianapolis, IN 46268. (317) 522-2995

DISCLAIMER: Treatments may not work for you. Photos and videos are for illustration purposes only. Results may vary and are dependent on the individual patient, the procedure or treatments performed, and compliance with aftercare instructions. The information provided on this website is for general knowledge purposes only and is not intended as medical advice. It should not be used to diagnose or treat a medical condition. Professional hair transplantation services are provided by physicians of PAI Medical Group.