Don't worry! It is not a problem with having one testicle if you are healthy, it is not necessary to have any adverse effect on sex life or reproductive health. Please also read: https://lovematters.in/hi/resource/testicles-and-more https://lovematters.in/hi/our-bodies/male-body/monorchism-top-five-facts-about-the-missing-ball If you would like to join in on a further discussion on this topic, join our discussion board, "Just Ask” https://lovematters.in/en/forum