Can sore/tenderness in the tailbone area when sitting in certain positions be a sign of colorectal cancer?
Soreness. What you are describing is not a typical symptoms of colorectal cancer. Actually most cancers do not have symptoms early in the disease process. Common things to look for are blood in the stool, weight loss, constipation, change of caliber of stool to thin that does not return to a normal size in a few days. If concerned discuss your risks with your doctor.