Urinary tract infections (UTIs) range from uncomfortable to extremely painful, and are the result of bacteria getting into the urinary tract. Women are more susceptible than men, because of anatomical differences in the length and placement of the urethra. While infections are generally treated with antibiotics, it's also possible to use cranberry (either in whole form or as a juice) to treat and prevent UTIs naturally.
Identification
According to the National Institutes of Health (NIH), a UTI is identified on the basis of a series of symptoms, though your doctor may wish to verify the presence of an infection by testing your urine. UTI symptoms include cloudy urine, pain and cramping upon urination, and the need to urinate frequently.
Susceptibility
In addition to gender, there are a number of factors that may increase your susceptibility to a UTI, according to the NIH. The elderly (particularly those with difficulty urinating regularly) are more likely to develop an infection than younger individuals. Pregnant women are also particularly susceptible, as is anyone with diabetes.
Function of Cranberries
Science Daily reports that cranberries and cranberry juice prevent bacteria from being able to bond to cells in the urinary tract. To cause infection, E. coli bacteria must climb up the urethra (the tube through which urine from the bladder exits the body) to the bladder. The report states that "even at low concentrations, cranberry juice altered two properties that serve as indicators of the ability of bacteria to attach to cells."
Expert Insight
Native Remedies notes that while cranberries can help to reduce incidence and duration of UTIs, many store-bought cranberry juice cocktails contain only small amounts of the actual berry juice. "The important [thing] to remember," it suggests, "is to use 100% cranberry juice."
Warning
Both Native Remedies and the NIH warn that if untreated, UTIs can spread up the urinary tract and into the kidneys, which leads to a very serious infection. Native Remedies recommends that while cranberry juice may be used to prevent UTIs (and may be used in conjunction with physician-prescribed treatment for acute infection), it's best to see a doctor if you think you have an active UTI.
