Final answer:
Testicular self-exams should be done after a warm bath or shower, by rolling the testicle between the thumb and fingers and checking for any lumps, bumps, or irregularities on the testicle's surface. Testicular self-exams are important for early detection of testicular cancer, which is common in males aged 15 to 35 and has a high cure rate if caught early.
Step-by-step explanation:
Performing testicular self-exams is advised to be done after a warm shower or bath since the heat relaxes the scrotal skin, making it easier to examine the testes. It is recommended to perform the exam by gently rolling the testicle between the thumb and fingers, to feel for any lumps, bumps, or changes along the front or sides of the testis. Looking for irregularities on the surface or texture of the testicle is also a part of these self-exams. However, contrary to one of the potential statements, testicular self-exams should not be deferred until after the age of 30; they are crucial for early detection of testicular cancer, particularly as this type of cancer is most common in younger males, aged 15 to 35. Early detection can lead to a high cure rate, usually involving surgery possibly followed by radiation therapy and/or chemotherapy if necessary.