My sis has been loosing alot of weight over the last 6 months, she seems like bone and skin. I was worried about her frail condtion but asking her she got very defensive. I asked her at a recent viisit if it was cancer and she nodded yes. She will not talk to me about it, wont tell me what kind, or how bad. i found eveindece in her apartment of some kind of surgery. She denied it. I feel helpless to help her. What do you do when a loved one is hiding cancer from you.