Background Traction alopecia associated with the nurse's cap is a relativel
y common form of occupational hair loss.
Methods We examined 199 healthy South Korean nurses to assess the clinical
and pathologic characteristics of traction alopecia caused by prolonged tra
ction exerted at the point of attachment of the nurse's cap.
Results Seven nurses (3.5% of 199) had hair loss at the pin site used to se
cure the nurse's cap. The lesions were exclusively localized on the parieto
-occipital scalp. Histopathologic findings revealed characteristic cicatric
ial changes which showed a marked decrease in the number of hair follicles
without inflammation.
Conclusions Nurse's cap alopecia is not an uncommon occupational alopecia,
and appears to be a distinct clinical entity which should be distinguished
from other forms of patchy alopecia.