//fpnotebook.com/
Hair Pull Test
Aka: Hair Pull Test
- Indications
- Alopecia
- Preparation
- Do not Shampoo hair 24 hours before test
- Technique
- Grasp small clump (40-60 hairs) in index, middle and thumb
- Pull hairs gently but with firm pressure
- 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
- Telogen Effluvium
- Anagen Effluvium
- Alopecia Areata
- References
- Shapiro (2000) Can Fam Physician 46:1469-77 [PubMed]