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What is a urinary tract infection (UTI)? |
A UTI is an infection anywhere in the urinary tract.* Your urinary tract includes the organs that collect and store urine and release it from your body. They are the
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What causes a UTI? |
Usually, a UTI is caused by bacteria that can also live in the digestive tract, in the vagina, or around the urethra, which is at the entrance to the urinary tract. Most often these bacteria enter the urethra and travel to the bladder and kidneys. Usually, your body removes the bacteria, and you have no symptoms. However, some people seem to be prone to infection, including women and older people. |
When should I see my doctor? |
You should see your doctor if you have any of these signs or symptoms:
Women are more likely to get UTIs than men are. When men get UTIs, however, they're often serious and hard to treat. UTIs can be especially dangerous for older people and pregnant women, as well as for those with diabetes and those who have difficulty urinating. |
What will happen at the doctor's office? |
The doctor may ask you how much fluid you drink, and if you have pain or a burning feeling when you urinate, or if you have difficulty urinating. Women may be asked about the type of birth control they use. You'll need to urinate into a cup so the urine can be tested. In addition, your doctor may need to take pictures of your kidneys with an x ray or ultrasound and look into your bladder with an instrument called a cystoscope.
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How are UTIs treated? |
Once it is determined that your symptoms have been caused by an infection, your doctor will prescribe an antibiotic. Antibiotics can kill the bacteria causing the infection. The antibiotic prescribed will depend on the type of bacteria found. For simple infections, you'll be given 3 days of therapy. For more serious infections, you'll be given a prescription for 7 days or longer. Be sure to follow your instructions carefully and completely. If you have any allergies to drugs, be sure your doctor knows what they are. |
Will UTIs come back? |
Sometimes. Most healthy women don't have repeat infections. However, about one out of every five women who get a UTI will get another one. Some women get three or more UTIs a year. Men frequently get repeat infections. Anyone who has diabetes or a problem that makes it difficult to urinate may get repeat infections. If you get repeat infections, talk with your doctor about special treatment plans. Your doctor may refer you to a urologist, a doctor who specializes in urinary problems. Your doctor may have you take antibiotics over a longer period to help prevent repeat infections. Some doctors give patients who get frequent UTIs a supply of antibiotics to be taken at the first sign of infection. Make sure you understand what your doctor tells you about taking the antibiotic and do exactly that. Men may need to take antibiotics for a longer time. Bacteria can hide deep in prostate tissue. Men shouldn't take their spouse's pills and think they will cure the infection. See a doctor for treatment that fits your needs. |
How can I keep from getting more UTIs? |
Changing some of your daily habits may help you avoid UTIs.
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Hope through research |
Scientists supported by the National Institutes of Health are working on a vaccine to help prevent UTIs. The vaccine may be a suppository to place in the vagina or a pill to make the body's infection-fighting cells stronger. |
UTI glossary |
antibiotic (AN-tee-by-AH-tik): A medicine that kills bacteria. bacteria (bak-TEER-ee-uh): Tiny organisms that cause infection or disease. bladder (BLAD-ur): The balloon-shaped organ inside the pelvis that holds urine. cystoscope (SIS-toh-scope): A tube-like instrument used to look inside the urethra and bladder. kidney (KID-nee): One of two bean-shaped organs that filter wastes from the blood. The kidneys are located near the middle of the back. They send urine to the bladder through tubes called ureters. prostate (PRAH-state): In men, a walnut-shaped gland that surrounds the urethra at the neck of the bladder. The prostate supplies fluid that goes into semen. suppository (suh-POZ-ih-tor-ee): Solid medicine formed in the shape of a small cone or cylinder to be placed in a body cavity like the vagina or rectum. ureters (YOOR-uh-turs): Tubes that carry urine from the kidneys to the bladder. urethra (yoo-REE-thrah): The tube that carries urine from the bladder to the outside of the body. urinary (YOOR-ih-NEHR-ee) tract: The system that takes wastes from the blood and carries them out of the body in the form of urine. The urinary tract includes the kidneys, ureters, bladder, and urethra. urologist (yoo-RAH-luh-jist): A doctor who specializes in urinary problems. |
For more information |
The National Kidney and Urologic Diseases Information Clearinghouse has a fact sheet, Urinary Tract Infections in Adults, that gives more information about UTIs. The clearinghouse has information about prostate problems and kidney stones as well. These organizations also have fact sheets on urinary tract infections. American Foundation for Urologic Disease1128 North Charles Street Baltimore, MD 21201 Phone: 1-800-242-2383 or (410) 468-1800 Internet: www.afud.org National Kidney Foundation 30 East 33rd Street New York, NY 10016 Phone: 1-800-622-9010 or (212) 889-2210 Internet: www.kidney.org |
Acknowledgments |
The National Kidney and Urologic Diseases Information Clearinghouse (NKUDIC) would like to thank the following individuals for assisting with scientific and editorial review of this publication.
Thanks also to Julia Musicker at the Washington, D.C., Bread for the City free clinic for facilitating field-testing of this publication. |
National Kidney and Urologic Diseases Information Clearinghouse
The National Kidney and Urologic Diseases Information Clearinghouse (NKUDIC) is a service of the National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK). The NIDDK is part of the National Institutes of Health under the U.S. Department of Health and Human Services. Established in 1987, the clearinghouse provides information about diseases of the kidneys and urologic system to people with kidney and urologic disorders and to their families, health care professionals, and the public. NKUDIC answers inquiries, develops and distributes publications, and works closely with professional and patient organizations and Government agencies to coordinate resources about kidney and urologic diseases. Publications produced by the clearinghouse are carefully reviewed by both NIDDK scientists and outside experts. This e-text is not copyrighted. The clearinghouse encourages users of this e-pub to duplicate and distribute as many copies as desired. |
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NIH Publication No. 02-4807 May 2002 |