I am very interested in this topic. My husband had a tumor removed from the sigmoid area of the colon one year and 3 months ago. We have been in the ER twice due, in 6 week, due to a bowel “blockage”, however physically the source is unseen by scans and X-rays with contrast. He feels strongly it is scar tissue and he was also born with gastroscesis (intestines on outside at birth) and adhesion removal alone took 3 hours before the removal of the tumor could be removed. My husband is “managing” daily with softeners, lactulose, gas x and when needed Linzess is his last attempt to get movement. We are focusing on completing two remaining chemo treatments for his colon cancer and remaining off Avastin in the event an urgent surgery is needed. (Surgery requires being off this chemical for several weeks so we are being cautious). After which we hope to focus on the blockage which will likely return. I hope this is helpful to others and would like to see this topic grow with more similar experiences. Thank you.