Infection, urinary tract (UTI)
An infection in the urinary system that begins when microorganisms cling to the opening of the urethra (the canal from the bladder) and begin to multiply. Most UTIs are due to one type of bacteria, E. (Escherichia) coli, a normal denizen of the colon. An infection in the urethra leads to inflammation called urethritis. From there bacteria may move up, causing a bladder infection (cystitis) and if the infection is not treated promptly, bacteria may go up the ureters to infect the kidneys (pyelonephritis). Factors leading to UTI include any abnormality of the urinary tract (such as a urinary tract malformation or a kidney stone) that obstructs the flow of urine, an enlarged prostate gland that slows the flow of urine, catheters (tubes) in the bladder, diabetes (due to changes of the immune system), and any disorder that suppresses the immune system. Women have more UTI than men, probably because a woman’s urethra is shorter (allowing bacteria quick access to the bladder) and nearer sources of bacteria from the anus and vagina. For many women, sexual intercourse seems to trigger an infection, as may the use of a diaphragm. Not everyone with a UTI has symptoms but symptoms commonly include a frequent urge to urinate and a painful, burning when urinating (dysuria). The urine may look milky or cloudy, even reddish if blood is present. Kidney infection can cause pain in the back or side below the ribs. In children, symptoms may be easily missed or misunderstood. A child with a UTI may be irritable, not eat normally, have an unexplained fever, have incontinence or loose bowels, or just not thrive.

Medical dictionary. 2011.

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  • urinary tract infection — infection of any part of the urinary tract, esp. the urethra or bladder, usually caused by a bacterium, Escherichia coli, and often precipitated by increased sexual activity, vaginitis, enlargement of the prostate, or stress. Abbr.: UTI * * * …   Universalium

  • Urinary tract infection — DiseaseDisorder infobox Name = Urinary tract infection ICD10 = ICD10|N|39|0|n|30 ICD9 = ICD9|599.0 ICDO = Caption = Multiple rod shaped bacteria shown between white cells at urinary microscopy from a patient with urinary tract infection. OMIM =… …   Wikipedia

  • urinary tract infection — noun any infection of any of the organs of the urinary tract • Hypernyms: ↑inflammatory disease • Hyponyms: ↑cystitis, ↑pyelonephritis, ↑urethritis * * * infection of any part of the urinary tract, esp. the urethra or bladder, usually caused by a …   Useful english dictionary

  • Urinary tract infection (UTI) — Infection of the kidney, ureter, bladder, or urethra. Not everyone with a UTI has symptoms. Common symptoms include a frequent urge to urinate and a painful, burning when urinating. More females than males have UTIs. Underlying conditions that… …   Medical dictionary

  • urinary tract infection — inflammation which causes a burning sensation during urination, UTI …   English contemporary dictionary

  • Lower urinary tract symptoms — (LUTS) are a common problem affecting approximately 40% of older men [RoehrbornCG and McConnell JD: Etiology, pathophusiology, epidemiology, and natural history of benign prostatic hyperplasia. Campell s Urology. WB Saunders Co 2002; chapt 38,… …   Wikipedia

  • Pregnancy danger from urinary tract infection (UTI) — A pregnant woman who develops a UTI should be treated promptly to avoid premature delivery of her baby and other risks such as high blood pressure. Some antibiotics are not safe to take during pregnancy. In selecting the best treatment, doctors… …   Medical dictionary

  • UTI — Urinary tract infection. (Not to be confused with URI: upper respiratory infection). * * * Abbreviation for urinary tract infection. * * * urinary tract infection; urinary trypsin inhibitor * * * UTI .yü (.)tē ī n a urinary tract infection * * *… …   Medical dictionary

  • UTI — ˌyü(ˌ)tēˈī abbreviation or noun ( s) : a urinary tract infection * * * urinary tract infection …   Useful english dictionary

  • UTI — may refer to:* Universal Technical Institute, a nationwide provider of technical education for automotive technicians * Urinary tract infection, a bacterial infection that affects any part of the urinary tract * United TI, a programming group for …   Wikipedia

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