The overwhelming majority of men with testicular cancer are now surviving for at least 10 years, figures released by the charity Cancer Research UK show.
They show survival rates in the UK soared to 96% in 2009, much higher than in the early 70s when 68% survived.
The organisation said attention needed to be focused now on the remaining 4%.
Experts said that changes in treatments offered as well as a growing awareness of testicular cancer could explain the improved survival figures.
Around 2,300 people are diagnosed with the cancer each year in the UK. The main symptom is a lump or swelling in the testicles.