the study of etiologic causes of dermatophyte in the location of foot and groin, and the possibility of association of dermatophytoses of these two locations together

superficial mycosis of the skin is one of the most prevalent human infections. within these infections, tinea pedis and tinea cruris have been studied. different aetiologic causes play role in these infections which the most important of them are trichophyton rubrum, trichophyton mentagrophyte and epidermophyton floccosum. prevalence arrangement of these causes are defferent in societies. this study is a case series study which in the course of this period 42 affected patients 0 tinea pedis and 40 affected patients to tinea cruris have been studied. from patients with doubtfull clinical lesion, whom have reffered to razi hospital within the first six months of the year 77, smear and culture were provided and in the meanwhile for consideration of possible association of dermatophytoses in these two location in cases of clinical doubt to tinea pedis among the affected patients to tinea cruris, smear and culture wase made and it wase observed that 40 of affected patients to tinea cruris, 4 patients simultaneously have tinea pedis (10%). in this study also, risk factors of tinea pedis and tinea cruris have been studied. etiologic causes in tinea pedis in this study with respect to arrangment are: t.ment, t.rubrum and then epid.floccosum and the causes of thinea cruris with respect to arrangment are: epid.floccosum, t.rubrum and then t.ment. in this study foot and groin etiologic factors have been considered, it was observed that the pattern of their etiologic causes in iran with respect to other countries are different.