Dream about having cancer and losing hair signifies some confrontation or turning point. You are leaving a meaningless past behind and are thinking for yourself. You need to hurry along in some area of your life. This dream represents feelings of being trapped and restricted. You are putting too much emphasis on beauty and outside appearances rather than what is inside.
Having cancer and losing hair dream expresses cleansing and releasing of suppressed thoughts. The troubles you are experiencing are only temporary. You are feeling confined and restricted in your job, career, health, or a personal relationship. Your dream expresses some aspect of yourself which you are not paying enough attention to. Someone in your life is totally not who you thought they were.
If you dreamt about having cancer and losing hair:
Instead of worrying about the damage you might have caused, try to isolate yourself a bit for these next couple of days. Withdraw into your own mind with a meditation practice, such as yoga or other exercise, that allows you to know your own mood. Integrate your feelings with excercise. We exist in a “talk culture,” though sometimes there really isn’t that much to say.