Mesh - Cancer in a dream can mean many things other than the illness of cancer. But such dreams can sometimes be an early warning sign. If so it is worth having a medical check to see if there are any signs of it.
But I feel the dreams are about something else. There are two major links with dreaming of cancer. The first is that many people meet cancer in their dream because it represents death. So the dream is a way of experiencing your fears about death.
The second is that cancer depicts parts of ones emotional or thinking character that are sick and/or unhealthy. With these dreams you need to consider what part of the body you dream has cancer, then understand it psychological meaning. So see parts of the body indicated.
Occasionally the dream is an expression of how we feel about other people’s - especially our mother’s - emotional influence on us. This influence might be eating away at our own sense of well being. Or in some cases we sense it in the social attitudes we live amidst that is likewise eating away at our own health and wholeness.
Tony