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 » Leaukemia » Living with Cancer » Multimedia » Cancer News » Real-life Story » Triggers and Prevention » What to read Blood tests to detect sexually transmitted cancers Antibodies to a high-risk type of a virus that causes mouth and throat cancers when transmitted via oral sex can be detected in blood tests many years before onset of the disease, according to a World Health Organisation-led team. Aggressive liver cancer gene identified Survivors of childhood cancer prone to adult illness Cutting unnecessary CT scans in kids could lower future cancer risk Women can be screened years later than men with 'virtual colonoscopy' 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 » Breast self-examination FW de Klerk speaks about cancer advertisement About cancer Colon cancer - from Natural Standard Breast cancer - from Natural Standard Skin cancer Breast cancer centre See All About cancer » Cancer and your diet Could braais cause cancer? Cancer and diet Vitamin D and cancer See All Cancer and your diet » Cancer treatment Hyperthermia: turning the heat up on cancer Radiation side effects SA may lose cancer treatment tool 80% of cancers preventable See All Cancer treatment » Leukaemia New voice for SA's Chronic Myeloid Leukaemia patients Chronic Myeloid Leukaemia: the facts Real hope in fight against leukaemia Leukaemia survivor stories See All Leukaemia » Real-life story 'Cancer is sneaky' FW de Klerk speaks out about his cancer experience Conquering cancer: don't delay seeing your doctor Living with NET cancer 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 Empowering cancer patients in the workplace A daughter's plea for cancer treatment Know your rights and responsibilities Talking to your doctor See All Campaigning for cancer » Cancer in children More and more children survive cancer Tips for parents of children with cancer Knowledge is power - The power to save young lives Ewing's sarcoma See All Cancer in children » Facts and figures 4 common myths about cancer South Africa: 78% increase in cancer by 2030 Some cancers develop quickly 10 quick facts on lymphoma 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 Don’t be taken by surprise this winter. Keep your defences up with Vital Hop, skip and jump through winter with Hill’s Pet Nutrition Age-related bone loss is higher in women Conduct your most important Medihelp business from your mobile phone