An uncontrolled growth of malignant tumor in the body, which spread throughout the body, damaging the normal body cells, making them fail to function. Leukaemia Lymphomas Hodgkin's disease Malignant melanomas The curing rate will be increased if the tumor can be detected at an early stage.     Blood in stool, persistent constipation or change in bowel habit     Breast lump     Upper abdominal discomfort, loss of appetite     Recurrent nose bleeding, decrease hearing ability or Tinnitus, lump at neck     Difficulty in swallowing, decrease in weight     Persistent coughing, blood in sputum     Irregular virginal bleeding, especially bleeding after menopause     Wounds which are difficult to heal Change in body mole or pigmentation