Pancreatic cancer is caused by having the wrong kind of DNA that promotes the excessive growth of cancerous cells in the pancreas, and this causes a lump or tumor to star growing in the pancreas. It can also affect other major organs in the body, and since many times, diagnosis comes too late, it could have spread to other parts of the body.
Aside from genetics, you can also get signs and symptoms of pancreatic cancer if you do not adhere to healthy practices. For instance, smoking and drinking too much will do your body much harm. It is also risky not to include fresh vegetables and fruit in your daily diet.
Finally, if your immune system cannot stop the growth of cancerous cells, you will not be able to slow down the disease from spreading.