Tinea capitis in southwest Poland is mainly caused by zoophilic dermatophytes. Microsporum canis is the main pathogen, which was demonstrated in all analysed periods between 1977 and 2006 (50.5%-63.2%). Recently (2002-2006), a significant (P < 0.05) increase of Trichophyton tonsurans isolates was observed, which may be due to increasing migration of Polish population in this period. To sum up, the data on the prevalence of tinea capitis in southwest Poland resemble the epidemiological situation in Poland and bordering countries at large.