Puberty is typically divided into five stages, known as Tanner stages: 1. Stage 1: Prepubertal state with no noticeable physical changes. 2. Stage 2: Breast budding and the start of pubic hair growth. 3. Stage 3: Further breast development and darkening of pubic hair. 4. Stage 4: Areola and nipple form a secondary mound; pubic hair becomes adult-like. 5. Stage 5: Full maturity with adult breast contour and fully developed pubic hair.
