Common causes of urethral stricture include:
Medical procedures that involve inserting an instrument, such as an endoscope, into the urethra
Urinary tract infections (UTIs)
Latex reactions from Foley catheters
Irritation from Intermittent or long-term catheter use
Trauma or injury to the urethra or pelvis
BPH symptoms or previous surgery to remove or reduce an enlarged prostate gland
Cancer of the urethra or prostate
Sexually transmitted infections (STIs)
Radiation therapy