what is urinary tract infection?

Answer 1

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A urinary tract infection (UTI) is a bacterial infection that affects any part of the urinary tract. Although urine contains a variety of fluids, salts, and waste products, it usually does not have bacteria in it.[1] When bacteria get into the bladder or kidney and multiply in the urine, they cause a UTI. The most common type of UTI is a bladder infection which is also often called cystitis. Another kind of UTI is a kidney infection, known as pyelonephritis, and is much more serious. Although they cause discomfort, urinary tract infections are usually quickly and easily treated by seeing a doctor promptly

UTIs are most common in sexually active women, and increase in diabetics and people with sickle-cell disease or anatomical malformations of the urinary tract.

The use of urinary catheters in both men and women who are elderly, people experiencing nervous system disorders and people who are convalescing or unconscious for long periods of time may result in an increased risk of urinary tract infection for a variety of reasons. Scrupulous aseptic technique may decrease this risk. The bladder wall is coated with various mannosylated proteins, such as Tamm-Horsfall proteins (THP), which interfere with the binding of bacteria to the uroepithelium. As binding is an important factor in establishing pathogenicity for these organisms, its disruption results in reduced capacity for invasion of the tissues. Moreover, the unbound bacteria are more easily removed when voiding. The use of urinary catheters (or other physcial trauma) may physically disturb this protective lining, thereby allowing bacteria to invade the exposed epithelium.

Women are more prone to UTIs than males because in females, the urethra is much shorter and closer to the anus than in males. The article on vulvovaginal health has some health tips for preventing UTIs.

A common cause of UTI is an increase in sexual activity, such as vigorous sexual intercourse with a new partner. The term "honeymoon cystitis", although somewhat demeaning, has been applied to this phenomenon

http://www.healthline.com
http://www.AngelaKilmartin.com
http://www.kidney.niddk.nih.gov/kudiseases/pubs/utiadult
http://www.urologychannel.com/uti/
http://www.womenshealth.about.com/cs/bladderhealth/a/UTI.htm
http://www.mayoclinic.com/health/urinary-tract-infection/DS00286
http://www.en.wikipedia.org/wiki/Urinary_tract_infection
http://www.nlm.nih.gov/medlineplus/ency/article/000521.htm
http://www.emedicinehealth.com/urinary_tract_infections/article_em.htm - 37k
http://www.umm.edu/patiented/articles/what_symptoms_of_urinary_tract_infections_000036_3.htm

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Answer 2

An infection of the urinary tract.

Usually, it affects the bladder and urethra.

NOT an STD. More common in women.