Cancer refers to any one of a large number of diseases characterized by the development of abnormal cells that divide uncontrollably and have the ability to infiltrate and destroy normal body tissue. Cancer often has the ability to spread throughout your body.
The disease is the second-leading cause of death in the world. But survival rates are improving for many types of cancer, thanks to improvements in cancer screening and cancer treatment.
It is caused by changes (mutations) to the DNA within cells. The DNA inside a cell is packaged into a large number of individual genes, each of which contains a set of instructions telling the cell what functions to perform, as well as how to grow and divide. Errors in the instructions can cause the cell to stop its normal function and may allow a cell to become cancerous.
Although every case is different, some general signs and symptoms of cancer include: Weight loss Unexplained weight loss of 10 pounds or more may be one of the first signs of cancer. Weight loss is common in people who have pancreatic, stomach, esophageal, or lung cancer, but can occur with any type of cancer.
Currently, there’s no true cure for cancer. But recent advances in medicine and technology are helping move us closer than ever to a cure.
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