Home > Medical > Cancer Cancer All sections in Cancer » About Cancer » Campaigning for Cancer » Cancer and your Diet » Cancer in Children » Cancer Treatment » Facts and Figures » Leukaemia » Living with Cancer » Multimedia » Cancer News » Real-life Story » Triggers and Prevention » What to read More African Americans die from colon cancer According to researchers African Americans are more likely to die of colon cancer than whites. Breath test may reveal early-stage lung cancer Doctor in landmark abortion case dies of cancer How sitting too much can cause cancer New gene tests speed up tumour evaluation See All Cancer News » Cancer Overview Early warning signs of cancer 4 common myths about cancer Radiation side effects Tips for parents of children with cancer Know your rights and responsibilities 16 tips on avoiding cancer Treatment of cancer Coping with cancer Cancer and diet What is Cancer? One in six South African men and one in seven South African women will get cancer during their lives. It is a complex life-threatening condition that can affect people at any age and usually requires painful and uncomfortable treatment. Cancer is the uncontrolled growth of abnormal cells in the body - the cancerous cells are also called malignant cells - and can develop in almost any organ or tissue, such as the lung, colon, breast, skin, bones, or nerve tissue. The symptoms of cancer depend on the type and location of the tumour: for example, lung cancer can cause coughing, shortness of breath, or chest pain, whereas colon cancer often causes diarrhoea, constipation, and blood in the stool. Whereas some people are genetically predisposed to certain types of cancer, most cancers are lifestyle-related (for example smoking, unhealthy diet) and can be prevented. Take Action Quiz Cancer: are you at risk? » Ask CyberDoc » Quiz Am I eating to optimise my health? » Subscribe Newsletters » Cancer in 3D 8 things that you didn't know caused cancer advertisement About cancer 10 ways to prevent cancer Top warning signs of cancer Colon cancer - from Natural Standard Breast cancer - from Natural Standard See All About cancer » Cancer and your diet Could vitamin D help prevent cancer? Foods that may help prevent cancer Can diet prevent cancer? Could braais cause cancer? See All Cancer and your diet » Cancer treatment Cancer therapy named breakthrough of the year Advances in cancer immunotherapy under spotlight Hyperthermia: turning the heat up on cancer Radiation side effects See All Cancer treatment » Leukaemia Genetically altered T-cells beat back leukaemia Leukaemia can now be successfully treated New voice for SA's Chronic Myeloid Leukaemia patients Chronic Myeloid Leukaemia: the facts See All Leukaemia » Real-life story A cancer crisis and a fabulous state hospital TV presenter shares his cancer story 'Cancer is sneaky' FW de Klerk speaks out about his cancer experience See All Real-life story » Triggers and prevention Most cancers can be prevented 6 hidden causes of cancer Colorectal cancer: ignoring a gut feeling? 16 tips on avoiding cancer See All Triggers and prevention » Campaigning for cancer Access to cancer care: what do we need to do? A tale of two patients Empowering cancer patients in the workplace A daughter's plea for cancer treatment See All Campaigning for cancer » Cancer in children 67 Blankets for Nelson Mandela Day More and more children survive cancer Tips for parents of children with cancer Knowledge is power - The power to save young lives See All Cancer in children » Facts and figures 4 cancer myths debunked 6 male cancer myths 4 common myths about cancer South Africa: 78% increase in cancer by 2030 See All Facts and figures » Living with cancer Living with cancer - emotional issues Living with cancer - tips for daily living Living with cancer - the medical side Living with cancer - family matters See All Living with cancer » Tools Cancer - are you at risk? See All Tools » What to read Eating pomegranates: A Memoir of Mothers, Daughters and Genes Living proof: a medical mutiny The last lecture Love Life See All What to read » From our sponsors A number of good reasons why saving the tooth is a better option Breakfast like a King Alzheimer’s disease – incurable but preventable Cancer is a word that strikes fear into the hearts of many.