With the improvements made in cancer treatment, survival rates have climbed. In fact, the American Cancer Society projects that the number of U.S. cancer survivors will rise to almost 18 million by 2022. With so many survivors, the transition from patient to survivor is an especially important area for families, care givers and employers.

"Most people who have been diagnosed with cancer are very motivated to get back to work," said Kristin Tugman, senior director of Health and Productivity at Unum. "It helps create a sense of normalcy and control at a time when people often feel understandably overwhelmed."

Often, cancer patients faced many treatment side effects that could include fatigue or cognitive problems from chemo, Tugman says. With that in mind, employers should offer accommodations to help that employee transition. Some of these accommodations are clearly defining work expectations and limitations, offering a flexible or reduced work schedule, making a comfortable work environment, giving extra time during breaks for fatigue and providing performance feedback.

"Although cancer remains a significant area of focus for our disability claims professionals, we are seeing some dramatic trends in recovery and return to work," Tugman says.