Over the past several years increasing of cellulites in some regions of the country has been reported. During August and September of 2005, 4.48% of total slaughtered broilers were condemned due to cellulitis in Masjid Soleiman slaughterhouse. Four out of 98 slaughtered flocks were infected to cellulitis. The condemnation rates in infected flocks were: flock 1: 1.55%, flock 2: 0.993%, flock 3: 0.639% and flock 4: 1.66%. Bacteriologic examinations using standard biochemical techniques showed E.coli has been the most commonly isolated bacteria (90%). Sensitivity test showed diverse results which may represent different levels of various antibiotics consumption by poultry flocks.