Common causes of prostatitis include:

First, iatrogenic procedures, which include the insertion of a catheter or conducting cystoscopic examinations. Generally, during these procedures, equipment is inserted retrograde into the bladder through the urethra, which may carry bacteria back into the urethra, causing a retrograde bacterial infection and leading to prostatitis.

Second, patients with cystitis or urethritis have a higher amount of bacteria in their urine, which may also infect the prostate gland retrogradely and lead to prostatitis.

When prostatitis occurs, it is generally necessary to use antibiotics to control the infection. During treatment, it is also important to drink plenty of water. Drinking more water increases urine production, which can help flush the bladder and urethra timely, aiding in the recovery from the condition.