II. Indications
III. Preparation
- Do not Shampoo hair 24 hours before test
IV. Technique
- Grasp small clump (40-60 hairs) in index, middle and thumb
- Pull hairs gently but with firm pressure
V. Interpretation: Count hairs shed with maneuver
- Normal shedding: <10% of hairs pulled (or 4-6 or fewer hairs shed)
- May also be falsely negative due to inadequate force
- Active shedding: More than 10% of hairs pulled or 4-6 or more hairs shed