Qualitative and semiquantitative bacterial culture specimens were obta
ined from 44 patients with kerions. Staphylococcus aureus was isolated
from the scalp surface overlying the kerion in 29% of patients and fr
om the pus within the kerion in 48% of patients. Gram-negative bacteri
a were found in the same locations in 11.3% and 48% of patients, respe
ctively. The data indicate that bacteria are frequently cultured from
kerions.