10 Causes of Bladder Infection
Reviewed: Dr. Gromatzky
Cause #6: Intercourse
Sexual intercourse is a common cause of UTIs as it introduces bacteria into the urinary tract. Intercourse increases the likelihood for the urethra to come into contact with bacteria from other parts of the body such as the anus. Once the bacteria enter the urethra, they move upward to the bladder causing a bladder infection. In advanced cases, it may involve the kidneys resulting in pyelonephritis.
Approximately 80 percent of premenopausal women with a UTI have been observed to have had sex in the previous 24 hours. Women who first become sexually active or have a new partner also have a higher risk of a UTI.
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