What stage is my hair loss at? Understanding and taking action

Hair loss affects millions of men and women worldwide, but few truly know what stage they're at. Understanding the progression of your hair loss is the first essential step to taking effective action and choosing the solutions best suited to your situation.

The origins of the Norwood-Hamilton scale

The history of classifying male pattern baldness dates back to the 1950s, when Dr. James B. Hamilton first established a scientific correlation between male hormones and progressive hair loss.

In the 1970s, Dr. O'Tar Norwood took up and refined Hamilton's work to create the Norwood-Hamilton scale, a measurement system with seven distinct stages. This scale has become the global standard used by dermatologists and hair surgeons.

The Norwood-Hamilton scale: the 7 stages of male pattern baldness

Understanding these different stages allows you to accurately assess your situation and anticipate the potential evolution of your hair loss.

• Stage 1: No visible loss. The frontal line remains intact and well-defined.

• Stage 2: Beginning of thinning. Slight recession at the temporal temples.

• Stage 3: Significant thinning. The receding hairline forms a characteristic "M" shape.

• Stage 4: Significant hair loss. The temples are deeply bald and the vertex has a thinning area.

• Stage 5: Advanced baldness. The band of hair separating the temples and the vertex becomes very thin.

• Stage 6: Zone fusion. The frontal zone and the vertex merge completely.

• Stage 7: Total baldness on top. Only a crown of hair remains on the sides and back.

Visualizing your baldness: how to recognize its stage?

Identifying your stage of baldness requires careful and regular observation of your scalp.

• The "M" or "V" shape of recession: Observe if your temples gradually recede.

• Vertex lightening: Use a mirror to see the top of the skull.

• Decreased density: Note if your hair is becoming thinner and less dense.

• Daily hair loss monitoring: If you lose more than 100 hairs per day, consult a doctor.

• Tip: Photograph your hairline and vertex every 3 months.

The Ludwig scale: measuring female pattern baldness

Unlike men, women generally experience a different type of hair loss, called female pattern baldness (androgenetic alopecia). The three-stage Ludwig scale allows for a precise assessment of this progression.

• Stage 1: Slight and progressive lightening around the central line.

• Stage 2: More noticeable thinning, the scalp begins to show through more.

• Stage 3: Diffuse baldness across the entire top of the head.

Main causes of androgenetic alopecia

Androgenetic alopecia results from a complex combination of factors that are important to understand.

• Hereditary factors: Genetics can be inherited from both parents.

• Hormonal factors: DHT causes the progressive miniaturization of follicles.

• Lifestyle: Chronic stress, unbalanced diet, and smoking accelerate the progression.

What treatment is appropriate depending on the stage of baldness?

The choice of treatment depends closely on the stage you are at.

• Stages 1-2 (Prevention): Natural treatments, topical minoxidil 5%, food supplements, specialized shampoos.

• Stages 3-4 (Medical treatments): Oral finasteride, PRP, hair mesotherapy, LED therapy.

• Stages 5-7 (Hair Transplant): FUE or DHI technique, 2000 to 5000 grafts depending on the extent.

When should you consult a specialist?

Never underestimate the early signs. The sooner you act, the better your chances of stabilizing hair loss and preserving your existing hair.

• From the first signs of decline or improvement.

• To obtain a complete diagnosis by trichoscopy.

• To avoid rapid and irreversible progression.

• To benefit from a personalized treatment plan.