Few epidemiological data related to erysipelas or cellulitis is available i
n the literature. Descriptive data, such as incidence, has mainly been asse
ssed in hospital settings, and exceptionally in the general population. In
the only case-control study available, main risk factors for erysipelas of
the leg were lymphoedema and the site of entry Leg edema, venous insufficie
ncy, and overweight were associated to erysipelas to a lesser extent. Given
its high attributable risk, secondary prevention strategies targeted at to
e-web intertrigo should be evaluated. Risk factors for severity are difficu
lt to assess if they are transient-such as NSAIDs intake. A study on progno
stic factors is needed before intervention strategies are tested in appropr
iate groups of patients. (C) 2000 Editions scientifiques et medicales Elsev
ier SAS.