Bacterial inflammation can have respiratory symptoms such as coughing, coughing up sputum, fever, etc.; digestive symptoms such as nausea, vomiting, diarrhea, etc.; and urinary symptoms such as urinary frequency, urinary urgency, urinary pain, etc.. If bacterial inflammation infects the respiratory system, different symptoms may occur depending on the site of infection. If the upper respiratory tract is infected, there may be coughing, coughing up sputum, sore throat and other symptoms, and in severe cases, it may also involve the lungs, leading to pneumonia. If the bacterial inflammation infects the digestive system, due to inflammation stimulation, the gastrointestinal tract peristalsis accelerated, stimulation of the intestinal wall, there may be abdominal pain, diarrhea, nausea, vomiting and other symptoms. If bacterial inflammation infects the urinary system, the pathogenic bacteria infection can make the urethra red and swollen, mainly manifested as frequent urination, urinary urgency, pain and so on. Patients with bacterial inflammation should go to the hospital for a careful examination to clarify what kind of bacterial infection and timely treatment to avoid delay.