It is very important to detect Cancer before it spreads, as treatment is most effective when cancer is found early. For example if a breast lump is found at an early stage by self examination, timely treatment can result in long cancer free survival. Always remember that every symptoms could be explained by a harmless condition. Still, it is important to be aware of the following symptoms of cancer and get them investigated. There are numbers of investigation but here we recommend simple tips on when we may go to a doctor.