To dream that you are being operated signifies major changes in your waking life. You feel that something is being done to you and you do not feel yourself anymore, because of the pressure in your home or your job. The changes that were done to you could also be only the consequences of your lifestyle. To see the other person being operated indicates your view towards his personality. It is also a symbol that some old friend is going to get in touch with you again.
Read more about dreaming of Operation in other dream meanings interpretations.