Average climate in York, Nebraska. Based on data reported by over 4,000 weather stations. Tornado activity: York-area historical tornado activity is slightly above Nebraska state average. It is 123% greater than the overall U.S. average.
Normally a colon cancer can take from 7 to 10 years to develop from a polyp. That is why the recommendation for colonoscopy is every 10 years, unless there is a prior family history. However, with Lynch Syndrome (HNPCC) due to a genetic mutation a colon cancer can develop in as little as 1 to 2 years.
A colonoscopy is considered negative if the doctor doesn't find any abnormalities in the colon. If you're at average risk of colon cancer â you have no colon cancer risk factors other than age â your doctor may recommend waiting 10 years and then repeating the exam if your colon preparation was adequate.epending on the size and number of polyps, you may need to follow a more rigorous screening schedule in the future. If your doctor finds one or two polyps less than 0.4 inch (1 centimeter) in diameter, a repeat colonoscopy in five to 10 years may be adequate, depending on your other risk factors for colon cancer.