Doctors credit new screenings and tests as a reason for the recent drop in cancer deaths.
However, they say even as more people could be getting help from those scans some are getting too many checks.
Breast, cervical, and colon cancers are often caught by scans and are much easier to treat when they are caught early.
Women should be getting mammograms to check for breast cancer every year after their 40th birthday.
It is different for cervical cancer women only need to get pap smears annually until they turn thirty.
Then, it is okay to just get checked every three years provided you had clean checks before.
Finally for colon cancer doctors say it is important to get checked every year after you turn fifty.
"We know that mammography screening and colorectal screening and cervical cancer screening can catch cancer at an early enough stage that we can detect it early and help lower the chances of your dying of the disease," says Dr. Christine Berg, of the National Cancer Institute.
Something else to remember if you have a family history of any of these diseases you need to get checked even earlier.