People under the age of 40 often think they have no chance of getting cancer. They delay seeing their physician even though they have a warning sign. Cancer can occur at any age. Injuries such as bruises, cuts and broken bones cannot cause cancer. A person may suffer an injury, go to a physician, and the physician may happen to find a tumor.
Cancer is a very complex disease.
If there were one single cause of cancer, the cure would have been found long ago. Cancer is caused by many factors. No one single cause can explain it. Cancer can run in families. If one family member has it, others may get the disease.