The pelvic exam, a common but often uncomfortable ritual for millions of American women, might be unnecessary for those who don't have symptoms of a gynecological problem.
Research led by the Minneapolis Veterans Medical Center found no evidence that the exam benefits women without symptoms, but plenty of indications that it causes discomfort and even pain and anxiety afterward.
"Without symptoms, we don't need to be mucking around in there," said Dr. Hanna Bloomfield, a physician and researcher for the Minneapolis VA's Center for Chronic Disease Outcomes Research.
The findings were published Monday in conjunction with new guidance from the American College of Physicians against the exam for asymptomatic women.
While it could change the regular medical care that women receive, the recommendation is also expected to generate controversy on the same magnitude as a 2009 change in the guidance on mammograms for women younger than 50.
Bloomfield stressed that the findings applied only to women lacking symptoms, and that pelvic exams remain important for women suffering abnormal vaginal bleeding, lower abdominal pain and other symptoms.
Pelvic exams are common parts of well-women visits that are often fully covered as preventive services by insurance plans. An estimated 62.8 million pelvic exams were conducted in the United States in 2010.
"It's been the standard of care for everyone," said Dr. Jon Nielsen of Oakdale Obstetrics and Gynecology, who argued that "it's still the best way to identify ovarian problems."