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HOME / Alopecia / HAIR LOSS CLASSIFICATION

HAIR LOSS CLASSIFICATION

Hamilton-Norwood Scale - Male pattern alopecia

The scale classifies baldness into these stages:

 

 

Stage I: Slight recession in the frontal region.

Stage II:  Hair loss has begun to increase in the temporal area. Hairlines are becoming visible.

Stage III: Local hair loss in the crown. This is the first degree of hair loss that can be considered baldness.

Stage IV: Advanced hair loss on the crown.  Hair loss in frontal region is deeper than in State III. A hair band connects both areas of the head.

Stage V: Frontal and crown areas are separated by a narrow hair band. Seen from above, the area still having hair looks like a horseshoe (also in Scales VI and VII).

Stage VI: The depth of the frontal and crown areas has expanded sideward and backwards.  

Stage VII: In this state there is only hair in the area around the ears and towards the back of the head.

 

 

Ludwig scale– Female pattern alopecia

Stage I: It shows slight hair loss in the crown.

Stage II: Advanced hair loss in the same area.

Stage III: It defines hair loss from Stage I and II but also the initial hair loss in the front temporal line.
Stage IV: It shows a continuation of that diffuse loss and front temporal recession.

Stage V: There is a complete hair loss similar to male pattern baldness.


Stages III, IV, y V are very unusual cases. Menopausal women generally suffer them. 

 

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