My grand mother was died of colon cancer recently. At the age of 60 cancer was diagnosed. My grandmother's mother hadn't suffered from cancer. And my grandmother was very active upto her 50's. Later she suffered from constipation for 1 month. And had a swelling near urinary tract. It was removed by doctors. After few month we again had a scanning to her. Later reports showed that she had colon cancer and it was in final stage. This makes me thinks that my grandmother cancer was not hereditary. My question was in such case is there chance of having cancer to my mother. She was a second child. First child was a boy. And tell me the symptoms of cancer in initial stage.