Fever itself is most common when the organism is invaded by a pathogen and an inflammatory response occurs, resulting in an increase in body temperature. The common ones are viruses, bacteria, mycoplasma, chlamydia, etc. The first thing to consider is glomerulonephritis caused by streptococcal infection, mostly acute glomerulonephritis, which can be detected by urine routine, repeatedly, 24-hour urine protein quantification, and kidney function, as well as the dynamic process of complement C3 and C4 in plasma, and blood pressure. In addition, electrolytes can be monitored, as well as blood gas analysis and acid-base level. Based on the above mentioned tests, the diagnosis and treatment plan will be clarified.