I have a tortuous colon. I don't think it's that uncommon. I recently had a sigmoid colonoscopy and afterwards the g.i. told a few of his patients have same problem. After emailing multiple times about how I was evacuating fecus he said if I was interested he would give me a name of a surgeon who performs sigmoid colon resection. After reading some articles I was afraid and canceled the appt w surgeon. I am elderly woman.