Genetic factors play a role in testicular cancer, as individuals with a family history of the disease have a higher risk. Environmental factors such as exposure to certain chemicals, like pesticides, may also contribute to the development of testicular cancer. Preventive measures include regular self-examinations to detect any abnormalities early, maintaining a healthy lifestyle, avoiding exposure to harmful chemicals, and discussing any family history of testicular cancer with healthcare providers. Genetic counseling may be beneficial for individuals with a family history of the disease to assess their risk and consider preventive strategies.