One in two men will develop cancer in their lifetimes (versus one in three women), yet we hear a lot more about cancer symptoms in women. With most cancers, the earlier they are diagnosed the better the survival. And it's not just survival. The early a cancer is diagnosed, the fewer treatments, and resultant side effects, you might expect. Unintentional weight loss, cough, hair loss, upset bowel, blood lumps are some of the 10 cancer symptoms men should not ignore.