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Health Team

Breast cancer screenings: How soon to start?

Posted August 6, 2008

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— A large number of women diagnosed with breast cancer are 40-years-old or older, but that doesn’t mean the disease can’t strike earlier.

Actress Christina Applegate, 36, recently announced she is being treated for early stage breast cancer. Her case is not considered to be life-threatening.

Applegate didn’t wait until she was 40 to begin breast cancer screenings because she had a family history of breast cancer. Her mother is a two-time breast cancer survivor and has also had cervical cancer.

Only 5 to 10 percent of breast cancer cases are inherited, which means a person have a specific gene abnormality that is passed down through the family. People who are considered at risk have one or more first degree relatives (i.e. mom or sister, each) with breast cancer, especially ones diagnosed before the age of 50.

Experts recommend women have mammograms every year starting at age 40. Women younger than 40 who are at a higher risk for breast cancer should talk with a health care provider about when to start mammograms and how often to have them, according to the National Cancer Institute.

Some factors that place women at an increased risk for this type of cancer are:

  • Family history
  • Long-term use of hormone therapy to treat menopause
  • Breast changes on biopsy – some abnormal cells can increase the risk of a woman developing breast cancer. Women who have had two or more biopsies on their breast for other benign conditions are also at an increased risk
  • Certain genetic alterations
  • Reproductive/menstrual history – Women who had their first child after age 30 or who have never had a child can be an increased risk. Women who started their periods before age 12 or went through menopause after turning 55 are also at an increased risk.
  • Radiation therapy patients – Women who have had the treatment to the chest before age 30.
  • Breast density – Older women whose mammograms show more dense tissue are at an increased risk.
  • Taking the drug Diethylstillbestrol (DES) – Pregnant women who took the drug between 1940 and 1971 are at an increased risk. It is no longer given to pregnant women.
  • Being overweight or obese
  • Being physically inactive
  • Alcohol usage – Some studies suggest the risk of breast cancer increases with the amount of alcohol a woman drinks.

Breast cancer that develops in young women tends to be more aggressive and less responsive to treatment than cancers in older women, according to Duke researchers.

The National Comprehensive Cancer Network supports more aggressive screening for those that may inherit breast cancer. The group suggests monthly self exams starting at age 18 and semi-annual clinical exams, annual mammograms and breast MRIs starting at age 25.

Mammograms are not the only method of breast cancer screening. Magnetic Resonance Imaging (MRI) scans and breast ultrasounds are also sometimes used in addition to mammograms, according to the American Cancer Society.

Trials of women with a high genetic risk of breast cancer have shown that MRI scans are more sensitive than mammograms for finding breast tumors, according to the National Cancer Institute.

Doctors sometimes doctor may recommend genetic testing, which comes only after risk and psychological testing. If a person is considered to be at risk for hereditary breast cancer, the National Comprehensive Cancer Network recommends more aggressive screening:

If more aggressive screening discovers the presence of breast cancer, patients may be candidates for a prophylactic mastectomy.

6 Comments

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  • scientistjo Aug 7, 2008

    Hence, you need those check-ups!

  • scientistjo Aug 7, 2008

    While I'm glad someone ALWAYS comments on healthy eating to reduce your cancer risk, certain populations of people are always at higher risk of cancer. You can reduce your risk of cancer through healthy means; however, nothing can make your risk zero.

  • allison842 Aug 7, 2008

    They recommend starting all those screenings at age 25? I guess I'm in trouble then. I am about to turn 26 and have five women on my mother's side of the family (including my mom and grandmother) who had breast cancer. Time to start getting my breasts flattened like a pancake? I don't know about that...

    Most doctors and things I've read said 35, not 25.

  • purplerado Aug 7, 2008

    "Experts recommend women have mammograms.." Hmm. If "experts" who actually CARE about whether or not women get breast cancer were asked, they would recommend that women eat a diet high in NUTRIENTS- >51% fresh vegetables and fruit and low in animal products and sugar; maintain a PH level above 7, be a healthy weight, limit alcohol consumption, and exercise a little each day. It is the American DIEt and the rotten health care system driven mainly by making profits off of cancer and heart disease that is the real problem. Mammograms and MRIs and other examinations to find cancer after it's already started is NOT the answer.

  • Snakebite Survivor Aug 7, 2008

    The previous commenter is right on the mark. Even monthly self-exams are apparently not much good. See the article in the Washington Post:

    http://www.washingtonpost.com/wp-dyn/content/article/2008/07/16/AR2008071601536.html

    To quote the researchers:

    "At present, screening by breast self-examination or physical examination [by a trained health worker] cannot be recommended."

  • WXYZ Aug 7, 2008

    Amazing! After decades of research and treatment, still, most stories on this topic, which are written for the lay public, fail to delineate the differences between acting on POSSIBLITY versus PROBABILITY. Given that screening for breast cancer has become one of the most profitable segments of the "for profit" healthcare industry in the US, it is understandable that these stories almost always point to the real or imagined disagreements over the existence or validity of hard, scientific evidence, which would justify mammograms for any given segment of the population. Now, they are suggesting MRI scans (which cost 3-4 times as much as X-Rays) for cancer screenings. MRI scans yield more usable images for soft tissue than X-Rays, but is this much higher price cost-effective? As long as we have "for profit" health insurance and "for profit" hospitals and diagnostic centers, and we have predatory liability lawyers, there will always be cause to watch for misuse and overuse of....