A delay in puberty is usually diagnosed by comparing an individual's sexual development with the Tanner scale.

青春期延迟的诊断通常是用个体的性发育比照Tanner量表。

Puberty is delayed if progression through the Tanner scale hasn't begun by the time 95% of an individual's peers have begun to sexually mature.

若Tanner量表上所描述的生理变化没有出现，而95%的同龄人已达到性成熟时，则认为青春期延迟了。

The Tanner scale, or Tanner stages, is a predictable set of steps that males and females go through as they develop primary and secondary sex characteristics and become sexually mature.

Tanner量表或Tanner分期可以用来预测男性和女性第一性征、第二性征以及性成熟的发育历程。