ABSTRACT
Anagen hairs can be easily and painlessly extracted from the scalp by gentle traction. Extracted hairs show a characteristic ruffling of the hair shaft cuticle (Figure 17.4). The inner and outer root sheaths are left behind in the scalp when anagen hairs are extracted. Some authors have found an increased telogen count (> 20%) in patients with LAHS, but others have found a decreased count (< 5%). This issue will require more careful study in large numbers of patients.
