This study focuses on assessing the sewage characteristics and performance of the Hospital Wastewater Treatment Plant for AL-Mauany hospital in Basrah Governorate. Samples were taken from wastewater treatment plants (WWTP) waste and tested for pollutants using (APHA) procedures and compared to standard criteria. COD, BOD, temperature, EC, TSS, and TDS were all tested in the laboratory. DO, NH 3, and NO 3 were chosen as effluent quality indicators. Identical to the standard limits in Iraqi Standard Specification, despite some of them experiencing a minor modification during the treatment stages. But for COD and BOD, which exceeded the permissible limit despite the high removal efficiency, because the values at the entrance were high because they came from hospital waste, where the values at the influent were for COD 665.4 mg/l and 504.6 mg/l, while the BOD values were 283.6 mg/l and 171.2 mg/l in summer and winter, respectively, while the effluent values were 129.7 and 102.8 for COD and 73.4 and 53.8 for BOD. As well as for the NO 3 -N results for the effluent, which was unstable inflow and effluent, but in no way did it exceed the Iraqi effluent which was 50 mg/l.