I am 56 years old. Aside from a 15 day episode (8/2012) of exceptionally light flow, I have had only sporatic spotting since. I have had 2 endometrial biopsies Sept 2010 & 2012, negative for any malignancy. So far for 2013, I have had a total of 8 days of spotting. The time frame between episodes can be as long as 45 days. I am in the health care field and have a strong knowledge base ...but I am confused at this point if I should be concerned or not. Willing to go through yet another biopsy, if necessary. When should I become concerned? Part of me wants to accept this as just an individualized way to go through menopause but the other part of me is worried!