Don’t let the size of the string fool you, your cat definitely needs prompt veterinary care. In fact, objects like string, rope, or fishing lines, termed as linear foreign bodies, are the most common type of foreign bodies retrieved from cats. Keep in mind that if you open your cat’s mouth and can see the string, you should not attempt to remove it yourself. Attempting to do so may cause extreme injury to your cat’s esophagus (the passageway from their mouth to their stomach).