13 doctors weighed in:

What are some causes of urinary tract infections?

13 doctors weighed in
Dr. John Leander Po
Internal Medicine - Infectious Disease
4 doctors agree

In brief: Basic concepts-

Normally, the human urinary system is designed to 1) flow one way (i.
e. Out) and 2) completely empty the bladder. Disrupting forward flow can cause "back wash" of urine(with bacteria) into the urethra (eg.Chronic catheter use, wiping improperly); if urine is left standing in the bladder (like an enlarged prostate, weak bladder, anatomical problem), then bacteria can grow and cause infection.

In brief: Basic concepts-

Normally, the human urinary system is designed to 1) flow one way (i.
e. Out) and 2) completely empty the bladder. Disrupting forward flow can cause "back wash" of urine(with bacteria) into the urethra (eg.Chronic catheter use, wiping improperly); if urine is left standing in the bladder (like an enlarged prostate, weak bladder, anatomical problem), then bacteria can grow and cause infection.
Dr. John Leander Po
Dr. John Leander Po
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Holly Barth
General Practice
4 doctors agree

In brief: Bacteria

Urinary tract infections (UTI) are caused by bacteria.
There are several bacteria that could cause the infection. Women are more susceptible as they have a shorter distance from the outside environment to their bladder. Intercourse, catheters and poor hygiene can make someone more likely to get at uti.

In brief: Bacteria

Urinary tract infections (UTI) are caused by bacteria.
There are several bacteria that could cause the infection. Women are more susceptible as they have a shorter distance from the outside environment to their bladder. Intercourse, catheters and poor hygiene can make someone more likely to get at uti.
Holly Barth
Holly Barth
Answer assisted by Holly Barth, Medical Student
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Dr. George Klauber
Pediatrics - Urology
2 doctors agree

In brief: Bacteria in bladder

Bacteria usually reach bladder via the urethra, although occasionally they reach kidney via blood stream. Not emptying bladder after sex is a common cause of utis, sub-optimal toilet hygiene-wiping back to front or keeing thighs closed with urinating can trap urine in vagina and behind labia making nice environment for bacteria.
Bubble-bath and tub baths rather than showers are all causes.

In brief: Bacteria in bladder

Bacteria usually reach bladder via the urethra, although occasionally they reach kidney via blood stream. Not emptying bladder after sex is a common cause of utis, sub-optimal toilet hygiene-wiping back to front or keeing thighs closed with urinating can trap urine in vagina and behind labia making nice environment for bacteria.
Bubble-bath and tub baths rather than showers are all causes.
Dr. George Klauber
Dr. George Klauber
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