Re: Bowel changes and menstrual cycle
Since your brother was diagnosed, with rectal cancer, you should get a colonoscopy, no matter what. After my diagnosis, in my early 30s, that was the first thing my doctors told me, to tell my siblings, irregardless of age or lack of symptoms, to get checked. That said, due to my radiation, I went into menopause early. Prior to that, I did notice that my menstrual cycle had an effect on my digestive cycle. I had looser stools, while menstruating. Nevertheless, please get a colonoscopy. I was fortunate to see some of the best doctors, in the country, and family testing was the biggest thing that they stressed.