A total of 569 cwnel carcasses were exwnined at Al-Ahsa abattoir for the presence of traumatic iryuries. 136 carcasses had inj uries in the thigh muscles (77.9%), rump (19.9%), hump (5.1%), thoracic muscles (2.9%) and jlank region (2..2%). Most of the inj u ries were in the form of contusions (81%} but necrosis and suppuration were also ob served in the rump and thif!h. In three cases, fistulation was occurred in sublumbar muscles. Histologically, contused muscles showed edema and ischaemic necrosis as sociated w ith severe haemorrhages. Necrotic muscles showed hyaline degeneration and Zenker' s necrosis associated with mild irifl.ammatory cell reaction. Suppurative myositis characterized by marked .fibroplasias was seen in the severely qffected mus cles. Swja ce swabs taken.from the traumatized parts and the corresponding unqffect ed parts were cultured for aerobic and anaerobic bacteria. The isolated normal micro .flora identified as : Enterobacter agglomerans, Enterobacter sakazakii. Serratia odorifera, Serratia marcescens, Aeromonas hydrophila, Micrococcus species and Lac tobacillus species. The bacterial populations were estimated by higher counts on the iajured surfaces as compared to their unqffected surfaces. Some pathogenic bacteria and fungi were recovered from the surface of traumatized parts and identified as Sal monella Arizona, Staphylococcus aureus, Klebsiella pneumonae, Pasteurella haemolyti ca, Streptococcus fecalis, Corynebacterium pseudotuberculosis, Candida albicans and aspergillus jlavus. The bacterial counts did not exceed 10 CFU/ cm2_ but the levels en countered may constitute a potential source of meat spoilage. The pathogenic bacteria and fungi isolated may have a public health signifkance.