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Breast Self-Exams: No Survival Benefit

Review Shows No Breast Cancer Survival Benefit in Women Who Do Regular Breast Self-Exams
By
WebMD Health News
Reviewed by Louise Chang, MD

breast_self_exams_dont_help.jpg

July 15, 2008 -- Doing a breast self-exam doesn't improve breast cancer survival, and it makes biopsies of benign breast lumps more likely.

That's according to an updated review of research on breast self-exams and breast cancer survival.

The updated review, published in the Cochrane Library, is in line with the findings from the original review, published in 2003.

"We would like to inform women that there is no evidence from two large studies that screening by regular breast self-examination (once a month) improves their chances of surviving breast cancer, whereas there is evidence that regular breast self-examination almost doubles their risk to undergo a biopsy," reviewer Jan Peter Kosters, MD, of the Nordic Cochrane Centre, tells WebMD via email.

Breast Self-Exam Report

The new review is based on two studies that together included more than 388,500 women in Russia and China who ranged in age from 30-66.

Some of the women were trained to do breast self-exams. They also got regular reminders or refresher classes to make sure their technique was correct. For comparison, the other women in the studies weren't taught or urged to do breast self-exams.

The women were followed for 10 years. During that time, 587 women died of breast cancer, with similar numbers of deaths in the breast self-exam group (292 breast cancer deaths) and in the group of women who weren't trained to do breast self-exams (295 breast cancer deaths).

The women who did breast self-exams were nearly twice as likely to get breast biopsies, many of which turned out not to show cancer.

In short, doing breast self-exams made no difference to the groups' breast cancer survival rates, and it boosted the biopsy rate.

Do Breast Self-Exams or Not?

The decision about whether or not to do a breast self-exam needs to be made by the women themselves, says Kosters, adding that "a rational choice would be not to do regular breast self-examination."

Doing a breast self-exam is "an option," Debbie Saslow, PhD, the American Cancer Society's director of breast and gynecologic cancer, tells WebMD. "We don't want to recommend against it but there's no evidence to recommend for it."

"Certainly, if any woman wants to do breast self-exam, then her doctor should give her assistance and make sure that her technique is what it should be, and also let her know what the limitations are so that she's not expecting that this is going to have big impact on her if she gets breast cancer," Saslow says.

Susan Love, MD, president and medical director of the Dr. Susan Love Research Foundation, calls the review a "wake-up call to say, 'You know what? We've been relying on things that don't work that well and we really have to start demanding something that works better.'"

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