In adults, cellulitis is usually caused by group A streptococci and St
aphylococcus aureus. However, in patients with underlying disease, it
may be caused by other organisms, such as Acinetobacter, Clostridium s
epticum, Enterobacter, Haemophilus influenzae, Proteus mirabilis or Es
cherichia coli. We report three cases of cellulitis of the lower legs
where E. coli was the causative bacterial organism. It is important to
suspect E. coli as a causative organism if blistering cellulitis occu
rs, especially in patients with underlying diseases.