In fact, as a tumor, including rectal cancer, it depends on where it eventually develops. If it metastasizes to the liver, it also depends on the site. If it metastasizes to the inside of the liver, it will not hurt if it does not reach the peritoneum, it may appear as ascites and jaundice, but it will not hurt. If it grows to the liver peritoneum, there may be pain, mainly in the right side of the ribs, which may be the main symptom. Bowel cancer can easily metastasize to bone, if once the bone metastasizes also depends on the site and how far the bone is eroded, if the initial stage may not feel any pain, but if the bone is very severely damaged, the pain may be very intense. So bowel cancer does not necessarily hurt until death, it is correlated with the metastasis site.