Surgery in a dream represents the real limb which is operated on in one’s dream. If a young man or a young woman see themselves having an operation where their chest is opened, or having an open heart surgery for example in a dream, it means that they are in love. As for elderly people, it means distress. Having a minor surgery on the thumb in a dream means signing a loan. (Also see Body 1 | Chest)
Read more about dreaming of Surgery in other dream meanings interpretations.