Cancer screening may not extend lives, new study suggests. But experts say it’s flawed.

One of the tests the authors studied was a mammogram, pictured above, which is commonly used to screen for breast cancer. (Image credit: Shutterstock)

Cancer screening involves searching for signs of the dangerous disease before symptoms develop. The goal is to catch cancer as early as possible, making it easier to treat and thus saving lives. 

A new study recently seemed to cast doubt on whether screening for cancer actually saves lives, but scientists told Live Science we shouldn’t jump to conclusions. 

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