Cause of a Urinary Infection
by Eric Smith
Urinary infections usually occur in the lower urinary tract that includes the urethra and the bladder. Patients have frequent urges to urinate and burning or discomfort during urination. Women have a greater risk of contracting a urinary infection.
Bladder infections, or cystitis, are caused by E. coli bacteria that spread from the gastrointestinal tract to the bladder.
Infections of the urethra, or urethritis, may be caused by gastrointestinal bacteria or sexually transmitted diseases.
The use of bladder catheters or tubes can introduce bacteria into the bladder that may develop into a urinary infection.
Sexual activity may irritate a woman's urethra and allow infections to develop there and spread to the bladder.
The use of diaphragms and spermicidal agents can increase a woman's risk of getting an infection of the urinary tract.
Kidney stones and other obstructions of the urinary tract can increase the likelihood of a urinary tract infection.