A hair-pull test was performed in which a small portion of hair was grasped and gentle traction was applied while sliding the finger along the hair shaft. A positive correlation with disease is considered when six hairs or more can be pulled out of the scalp (Springer, Brown, & Stulberg, 2003). Eight hairs were easily shed during this measure. These hairs were examined under the microscope for better viewing of the hair shaft, and the tapering of the hair toward the scalp end was observed, as with the physical examination.
J Pediatr Health Care. 2011;25(4):261-265. © 2011 Mosby, Inc.