A nurse is providing teaching to a client who has a new diagnosis of testicular cancer. Which of the following information should the nurse include in the teaching? (Select all that apply.)

Testicular cancer typically occurs between ages 15 and 35.

An early manifestation is a painful scrotal lump.

Sperm are no longer viable after diagnosis.

Testicular cancer occurs in both testicles equally.

Close male relatives are at an increased risk of developing testicular cancer.