Prostatitis is mainly caused by bacterial infection, poor lifestyle, irregular sex life and unclean intercourse. 1. Bacterial infection: Bacteria are retained in the prostate after blood circulation, thus causing acute inflammation of the prostate. Sometimes it is also a retrograde infection through the urethra, when the urinary tract is not clear it will cause urine reflux, and the bacteria in the urine will be refluxed to the prostate gland leading to prostatitis. 2. Bad lifestyle: prolonged sedentary pressure on the prostate can lead to pelvic and prostate congestion and edema, so that the local metabolism is stagnant, the prostate tube is blocked, and the prostate fluid is not excreted properly, resulting in prostatitis. 3. Irregular sex life: frequent sex life will make the prostate in repeated and continuous congestion, edema state.