It affects more than 45,000 men and women in the United States. However, the most alarming statistic that the American Cancer Society gives is that pancreatic cancer will kill 74 percent of those diagnosed in the first year.
It's for that reason that one family is speaking out.
"May 29 of last year my sister was diagnosed with pancreatic cancer, she had been sick for seven months," said Deena Rea Sister of Pancreatic Cancer Fighter. "It took that long for them to figure out what was wrong, what was causing all of her pain."
It's said the bond of sisterhood is unbreakable, and this baby sister proves that's true. On that traumatic day, she decided she would stand by her sister, Kay.
"I didn't really know anything about pancreatic cancer," said Rea. "It's not talked about the way other cancers are. So as she started the journey down the long road of treatment, I decided I would do all I could to tell people about pancreatic cancer."
Every day since the diagnosis, Deena wears purple in hopes of educating others about the silent killer. The color purple represents the cancer.
Saturday, Deena along with her son-in-law Wade, bicycled from Amarillo to Plainview. Kay said that Deena's actions didn't surprise her.
"My first reaction was, 'I'm not surprised.' She gets her mind set on something, she goes for it," said Kay Dawson Pancreatic Cancer Fighter. "I think it's a very worthy cause, one that's not paid much attention to."
Deena and Kay said they simply want to raise awareness so that others will have a fighting chance. Through this journey, Kay, Deena and their family have one main goal.
"I believe things are going on in my body, but I believe it's totally God," said Rea. "But, there needs to be screening, for people who just can't get any answers. There are answers."
Deena's goal is to raise 10,000 dollars for research. Though today she did fall short in funds, she and Wade completed the century bike ride to Plainview, in nine hours.