Occasionally, dogs and cats eat things they shouldn't, a foreign body, and it does not always pass through during a bowel movement. Foreign bodies can become lodged in the stomach or intestinal tract, causing a life threatening situation which requires surgery. During surgery, we remove the foreign body from the stomach or intestines. In severe cases, we have to perform an anastomosis. This is where part of the intestine is unhealthy or has died from the blockage and we remove part of the intestine and sew the healthy ends together. One of the most common foreign bodies we remove are pieces of rope toys from dogs.