Tanner stage of physical development as shovrn in the photograph above represents stage V.
Conceptually, pubertal maturation can be described in terms of sequence, timing, and tempo (Puberty consists of a series of predictable events, and the sequence of changes in secondary sexual characteristics has been categorized by several groups.
The staging system utilized most frequently is that published by Marshall and Tanner and the sequence of changes, commonly referred to as “Tanner stages”, is described below.
Girls – breast development
Stage 1: Prepubertal
Stage 2: Breast bud stage with elevation of breast and papilla; enlargement of areola
Stage 3: Further enlargement of breast and areola; no separation of their contour
Stage 4: Areola and papilla form a secondary mound above level of breast
Stage 5: Mature stage: projection of papilla only, related to recession of areola.