This study have been carried out on (100) samples (hair, skin, nail and lesions) from cleaners of hospitals, schools and roads suspected of skin infections, 60 male, 40 female and 40 samples 20 male and 20 female from healthy individuals as control. Patients were divided into 3 age groups: G1 (15-25) years, G2 (26-35) years and G3 (36-45) years, in addition to control group (25-35) years.Samples were taken from (June-September, 2010) at some regions in Baghdad City. Diagnosis by a potassium hydroxide (KOH) microscopy and culture on Saboraud's dexotrose agar (SDA) have showed that most common dermatophyte infections were for tinea pedis with prevalence rate of (53%) followed by tinea unguium of (24.6%), tinea versicolor of (12.1%), tinea corporis of (5.3%), tinea capitis of (4.7%). Bacterial infections have beendiagnosed by Gram stain film then cultured on blood agar and Api system.Staphylococcus aureus was responsible for most infections that appeared. Significant differences (P < 0.05) have been appeared between some of the study groups comparing with normal values and control group in the results of hematological tests [hemoglobin level,merythrocyte sedimentation rate (E.S.R.)]. Biochemical analyses were performed on serum samples (blood sugar, blood urea, serum creatinine, total bilirubin, serum cholesterol, serum triglycerides.