What are the causes and risk factors of thyroid cancer?created at May 04, 2009 114 The exact causes of thyroid cancer are largely unknown,but several risk factors are identified.These include exposure to ionizing radiation (particularly in childhood),a family history of thyroid cancer or certain genetic syndromes,prior head or neck radia...  |
The risk factors for developing colorectal cancer?created at May 04, 2009 116 Some people are more likely to develop colorectal cancer than others. Studies have found that certain factors increase a person’s risk. The following are risk factors for this disease: Polyps – Most (perhaps all) colorectal cancers develop in polyps. Pol... |