Is cranberry juice effective at treating urinary tract infections?

Urinary tract infections (UTIs) are a common problem for women. Though the first line of treatment is generally antibiotics, there has been much discussion about whether cranberry juice can also be used to prevent and treat UTIs. Tia Guster, M.D., an obstetrician and gynecologist, weighs in.

Can cranberry juice prevent or cure UTIs?

The answer is yes and no, Dr. Guster says. Research has shown that cranberries contain a substance that inhibits bacteria’s ability to function inside the bladder.

Drinking cranberry juice or taking cranberry pills may be beneficial for women who have recurrent UTIs.

“I usually advise patients [with recurrent UTIs] to pick cranberry juice with as little additives, like sugar, as possible,” Dr. Guster says.

However, clinical studies have not yet demonstrated the efficacy of cranberry juice in preventing or curing UTIs in women who don’t suffer from recurrent infections.

What to do if you have a UTI

Before trying any remedies for a UTI, be sure to talk with your doctor. He or she may recommend ways to treat and prevent the infection.

“Your doctor will review self-care and post-coital voiding, as well as bladder irritants, behaviors and underlying medical conditions that increase your risk of infection,” Dr. Guster says.  “A urine culture should also be considered for frequent UTIs so the specific bacteria can be identified.” 

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