In March I had surgery to remove a polyp found in my colon during a colonoscopy. 14 inches of my colon was removed and fused back together. No problems -- was able to pass a normal bowel movement within 24 hours. I have had a sharp acute pain in my left part of my abdomen which only lasts for seconds. Could this just be scar tissue where the colon was fused back together? Can an ultrasound show scar tissue?