A Christmas gift for two families in the United States has led to a life-changing discovery, after DNA testing revealed that the birthmarks of two men were accidentally switched at birth nearly four decades ago. The family is now suing the North Dakota hospital, saying they were deprived of the life they should have shared with their biological relatives.Kyle Beilein and Jeremy Morrison were both born on January 26, 1988, at Unity Medical Center in Grafton, North Dakota. According to a lawsuit filed last week, they were the only babies born at the hospital that day, but they were mistakenly sent home with each other’s parents, the Associated Press reports.The truth came out after Beilein received a DNA test at home during a Christmas gift exchange. The results linked him to a biological aunt through a genealogy website, prompting Morrison to take a DNA test. The results confirmed that they were raised by the wrong families.Baylin said he was shocked when the findings came out, calling the revelation something he and his family had never imagined. Morrison said he was convinced after seeing a photo of Baylin’s brother, whose likeness immediately stood out to him.The discovery forces both families to grapple with milestones they have missed for decades. Evelyn Newton, who raised Bailin, said she still considers him her son but feels she was robbed of the chance to see her biological child grow up.“Kyle is still my son. That’s never going to change,” Newton told the AP. She said she could never get back the years she lost, from her son taking his first steps to learning to drive to getting married.Despite the revelation, Morrison said the DNA results have not changed the way he thinks about the parents who raised him.“I was loved. I played sports. I did well in school,” he said. He said that no DNA test can erase 38 years of memories.Unity Medical Center acknowledged that the discovery had an impact on families, but said it had found no evidence that hospital staff were responsible for the change. “We recognize that this discovery has had a profound impact on them and their families,” the hospital said in a statement. It states that, because nearly four decades have passed, medical and staffing records that could have shown what happened no longer exist, and none of the delivery staff from that time are still employed at the hospital. However, Baylin said he still had the hospital identification bracelet issued to him at birth, which incorrectly identified him as Kyle Baylin.Both men have since met their biological parents, describing the reunion as emotional, but also awkward as everyone comes to terms with relationships that should have started decades ago. They have spoken to each other on the phone but have not met in person yet.The lawsuit argues that the hospital’s alleged error changed the course of two lives and four families, causing them to discover the truth nearly 38 years late.