Which Tanner stage represents a testicular volume greater than 20 ml?

The correct answer is Tanner V, which signifies full maturity in male genital development, including testicular volume. Tanner stages, which are also known as sexual maturity ratings, describe the physical development of children during puberty.

In Tanner stage V, the testicular volume exceeds 20 ml, indicating that the testes have reached their adult size. At this stage, there are also secondary sexual characteristics fully developed, such as pubic hair that is adult in quality and distribution, and development of the penis and scrotum that reflect adult proportions.

Understanding these stages is crucial in assessing normal sexual development, and recognizing the distinctions between the stages informs practitioners about the expected growth patterns during puberty.