Testicular health refers to the well-being of the testes, which are responsible for producing sperm and hormones like testosterone. Regular self-examinations can help identify any unusual lumps or changes, which may indicate potential health issues such as testicular cancer or infections. Maintaining testicular health involves a balanced diet, regular exercise, and avoiding harmful substances like tobacco and excessive alcohol. It's also important for individuals to have regular check-ups with a healthcare provider to monitor any changes and discuss concerns related to their reproductive health.