Urethritis is actually an inflammatory reaction of the urethra caused by pathogenic microorganisms, which is mainly divided into two categories: the first one is common urethritis; the second one is urethritis related to sexually transmitted diseases. Its main manifestations are frequent urination, urinary urgency, painful urination, as well as redness and swelling of the urethral opening, purulent discharge from the urethra, etc. The most common bacteria may be Escherichia coli, Klebsiella, Aspergillus, and so on. If the symptoms of urethritis, you need to go to the hospital in time, follow the doctor’s instructions according to the pathogen to choose the appropriate antibacterial drugs for treatment.