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A 65-year-old female asked:

What causes a uti?

13 doctor answers30 doctors weighed in
Dr. Philip Miller
A Verified Doctoranswered
A US doctor answeredLearn more
Bacterial: contamination of the urinary tract: bladder, urethra, kidney, friction during interourse, manipulation etc.
Dr. Howard Shapiro
Specializes in Internal Medicine
If frequent, see GYN: A UTI is caused by a bacterial infection, usually in the bladder. With pregnancy, especially after multiple pregnancy, there is often a weakening of the muscles between the vagina and the bladder that support the bladder, resulting in a pool of urine that never completely empties. Your GYN can evaluate this; it is a surgically remediable cause of frequent UTIs.
Dr. Tiffanie Noonan
Pediatrics 20 years experience
Bacteria...: Bacteria that is introduced into the urinary tract, usually through the urethral opening is the cause of a urinary tract infection.
Dr. Andrea Brand
Specializes in Family Medicine
Bacteria: Bacteria attaching to the tissues of the urethra, bladder or ureters or kidneys can cause inflammation. In women, urinary tract infection ( UTI) is often related to sexual activity, as bacteria are pushed into the urethra from the surrounding tissues. Not emptying the bladder completely can also increase risk for UTI, as can post menopausal state.
Dr. Frank Amico Jr
Internal Medicine 11 years experience
Multiple things: many things can cause a UTI. Usually in women, it's due to wiping incorrectly after using the restroom.
Dr. Ankush Bansal
Internal Medicine 17 years experience
Infection : Most of the time you don't know the cause. But it's basically an infection that got into the urinary system somehow through the urethra. For women, a common reason is improper wiping. You shouldn't wipe back to front because you can introduce gut bacteria from the rectum into the urethral opening. Sometimes it's a skin bacteria that happens to cause an infection.
Dr. Martin Raff
Infectious Disease 56 years experience
In a woman or man?: Uti in men is almost always associated with an anatomical abnormality of the urinary tract. In women there are multiple predisposing factors, including anything which may even minimally traumatize the urethra. Some women develop recurrent bladder infections because of the proximity of the urethral opening to the anus. This is a complex issue and cannot answer all here.
Dr. Theresa-Ann Clark
Family Medicine 24 years experience
Bacteria in urethra: Bacteria get into the sterile urinary tract. Sex and vaginal infection can cause this. Lubricate well before sex and urinate after. Always wipe front to back. Treatment: antibiotic x 3 days. Pills x 2 days-they turn pee orange. Drinking too much water can dilute medicine. Undiluted cranberry juice/extract can prevent, don't cure utis. If a UTI is not treated, serious kidney infections can develop.
Dr. George Klauber
Specializes in Pediatric Urology
Bacteria multiplying: In bladder. Bacteria are present around urinary opening in women who get utis because of proximity to anus & bacteria from rectum. Most common cause of UTI in young women is sex, bacteria get "pumped up" into bladder, hence need to mt bladder after sex. Sealed labia when urinating hence need to separate thighs.Wrong wiping, thongs & synthetic undies, bubble bath, constipation, infrequent urination.
Dr. Bennett Werner
Cardiology 44 years experience
UTI: (Lower) UTI (urinary tract infection) occurs from bacterial invasion of the urethra (where urine flows out) and bladder. (Upper) UTI involves the kidneys and ureters (tubes transporting urine down to the bladder). Bacterial contamination is the cause: may occur during defecation wiping), and commonly during sex. Prolonged used of a sanitary napkin also.
Dr. Jesse Mills
Urology 20 years experience
So many: There are lots of reasons. Talk with your doctor to identify risk factors in you.
Dr. Cynthia Frazier
Gynecology 39 years experience
Bacteria: Urinary tract infection is caused by bacteria from the GI tract ascending up the urethra. The anal opening is very close to the vaginal opening in women. Intercourse can expedite this. Always empty your bladder before and after intercourse. Drink plenty of water.Cranberry juice or pills will acidify the urine which helps prevent the bacteria from spreading. Get checked early if symptoms develop.
Dr. Michael Sanders
Pulmonology 16 years experience
Bacteria: typically, a UTI is caused by E.coli, especially in women. Many other bacteria can cause this as well.

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Similar questions

A 49-year-old male asked about a 45-year-old female:

What is the cause of uti?

2 doctor answers4 doctors weighed in
Dr. Camilo Barcenas
Nephrology and Dialysis 53 years experience
Multiple: Many different causes produce uti's .Can range from anatomical abnormalities( bladder problems ) to bad sexual habits to some drug effects (on the bladder..) not a simple answer ...
A 46-year-old member asked:

What causes rid of a uti?

1 doctor answer2 doctors weighed in
Dr. Maiysha Clairborne
Family Medicine 20 years experience
Uti treatment: Generally urinary tract infections require treatment with antibiotics. In some cases very early on, cystitis (or bladder infection) may be eradicated naturally with cranberry extract & d-mannose. Azo can also be used to treat very early bladder infections.
Kennesaw, GA
A 20-year-old female asked:

Can a UTI cause bv?

1 doctor answer3 doctors weighed in
Dr. Martin Raff
Infectious Disease 56 years experience
No: These are two separate and different clinical entiities. A urinary tract infection is just that. Bacterial vaginosis is more of colonization of the vaginal barrel by different bacteria that produce a discharge.
A 36-year-old member asked:

Can a syrinx cause a uti?

2 doctor answers5 doctors weighed in
Dr. Manoj Mittal
Neurology 16 years experience
Syrinx: If someone has urinary symptoms like retention or incontinence from syrinx then they can have uti.
A 30-year-old member asked:

Could my masturbation be causing uti?

1 doctor answer2 doctors weighed in
Dr. Martin Raff
Infectious Disease 56 years experience
Masturbation: No, masturbation does not cause uti. In women, however, if a dildo is employed it is possible that trauma to the urethra (tube from bladder out) may predispose to uti.
Dr. Steven Hebert
Pathology 29 years experience
Even manual stimulation during masturbation can cause minor trauma to the urethra and this can in some people lead to a UTI.
Oct 8, 2013

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