In an interview for In Depth with Graham Bensinger that aired on Wednesday the Rocky IV actor revealed that he was first diagnosed with kidney cancer in 2015. After surgery, Lundgren remained symptom-free until he made a visit to a doctor in his native Sweden in 2020 and they discovered tumours in his kidney and liver. He was given a terminal diagnosis and two to three years to live. "I've had a great life. I've lived like five lifetimes in one. So, it wasn't like I felt bitter but I felt sorry for my kids and my fiancée (Emma Krokdal).”