My 56 yrs mom got uterine polyp of 6mm found after spotting. it will be taken out. ovaries normal. what is the exact medial % of beeing cancerous? 1%

Rare to be cancer: In the medical literature, the rate of cancer found in an endometrial polyp ranges from less than 1% to 8%, with an average around 5%. Approx 95% of them are benign. Please get it removed and let a pathologist look at it under a microscope to see if any cancer is present. See this link: http://www.Mayoclinic.Com/health/uterine-polyps/ds00699.