<div><p>Several doctors groups and advocacy groups set guidelines for cancer screening, and they update that advice periodically as new information emerges. Sometimes they agree, sometimes they don't. Last year, a number of groups got together and issued consensus guidelines for colon cancer.</p><p>The U.S. Preventive Services Task Force, a government-appointed, independent panel of doctors and scientists, also makes recommendations looked to by doctors groups, insurers and policy makers.</p><p>The latest advice from the major medical groups for routine screening — primarily for people who don't have a family history of a particular cancer or other risk factors:</p><p>Breast cancer:</p><p>_ American Cancer Society: Mammograms yearly beginning at age 40; breast exam by doctor at least every three years in 20s and 30s, annually after 40; breast self-exam an option.</p><p>_ American College of Obstetricians and Gynecologists: Mammograms every 1-2 years for women in their 40s; annual mammograms age 50 and older; breast exam by a doctor annually from age 19; breast self-exam can be recommended.</p><p>_ U.S. Preventive Services Task Force: Mammograms every two years for women ages 50 to 74, after 75 the risks and benefits unknown; recommends against self-exam; value of exams by doctors unknown.</p><p>Cervical cancer:</p><p>_ Cancer Society: Start Pap tests about three years after first intercourse but no later than 21; annually or every 2-3 years for women over 30 who have three normal tests; stop at 70 after at least three negative tests and no abnormal tests in last 10 years; discontinue after a total hysterectomy.</p><p>_ ACOG: Start Pap tests at age 21 and then every two years; 30 years and older, every three years after three normal tests; reasonable to stop at age 65 or 70; discontinue after hysterectomy.</p><p>_ Task Force: Start Pap tests within three years of sexual activity or by age 21; at least every three years, stop after 65 if negative tests and no high risk; discontinue after hysterectomy.</p><p>Prostate cancer:</p><p>_ Cancer Society: No routine testing recommended; doctors should discuss benefits and limitations, and offer screening — a physical exam and blood test for a substance called PSA — to men beginning at age 50, with at least a 10-year life expectancy.</p><p>_ Task Force: No recommendation for or against screening for men under 75; men over 75 should not be screened.</p><p>_ American Urological Association: Men 40 and older should be offered a baseline PSA test and exam.</p><p>Colon cancer:</p><p>_ Cancer Society and other major groups: Start screening at 50 with one of these tests: colonoscopy every 10 years; a sigmoidoscopy of the lower colon every five years; CT colonography or "virtual colonoscopy" every five years; barium enema every five years, stool blood test annually; stool DNA test, no interval given.</p><p>_ Task force: Screen from age 50 to 75 with one of three tests: colonoscopy every 10 years; a sigmoidoscopy every five years, combined with a stool blood test every three years; a stool blood test every year.</p><p>___</p><p>On the Net:</p><p>Task Force: http://www.ahrq.gov/CLINIC/uspstfix.htm</p><p>Cancer Society: http://tinyurl.com/screening-guidelines</p><img src="http://admatch-syndication.mochila.com/images/ad.gif?aid=63874445&bid=informcom" /></div><div id="copyright"><div>

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