A recent Cochrane review has concluded that there is evidence to recommend daily cranberry juice for the prevention of symptomatic UTIs in women.
Women are often affected by urinary tracts infections (UTIs), up to 11% of women experiencing an episode in a year, and 50% reporting an episode in their lifetime. Recurrences are also common; various studies have shown that 25 to 40% of women will have had a further episode by the end of one year, and 3% or more will continue to have recurrences. These frustrate and distress patients, and may also contribute to the development of antibiotic resistance. The cost to the community is large, around US$1.6 billion annually in the USA.