| Physical Maturity |
Skin |
Fragile, sticky, transparent |
Red, translucent |
Pink, smooth, visible blood vessels |
Dry epidermis, pale, some visible blood vessels |
Dry skin, rare visible blood vessels |
Dry skin, no visible blood vessels |
Tough, severe dryness, wrinkled |
| Lanugo |
None |
Sparse |
Abundant |
Thinning |
Bald areas appearing |
Most areas without lanugo |
|
| Plantar Creases |
Toe to heel length 40~50mm: -1 <40mm: -2 |
Toe to heel length >50mm, no creases on sole |
Faint red creases |
Some horizontal creases on the forefoot |
Creases cover 2/3 of the forefoot |
Creases cover entire sole |
|
| Breast Formation |
Difficult to recognize, no areola |
Visible presence only |
Areola flat, no protrusion |
Areola colored, 1~2mm protrusion |
Areola 3~4mm protrusion |
Areola 5~10mm protrusion |
|
| Eyes/Ears |
Eyelids closed, relaxed: -1; tightly closed: -2 |
Eyelids open, ears flat, foldable |
Ear pinna slightly curved, soft, slowly rebounds |
Ear pinna curved, soft, rebounds |
Earlobe cartilage hardens, ear rebounds immediately |
Earlobe cartilage thick, ear stiff |
|
| Genitalia (Male) |
Scrotum smooth, no creases |
Testes undescended, no scrotal creases |
Few rugae on the scrotum |
Some scrotal creases, testes beginning to descend |
Scrotal creases |
Testes fully descended, deep scrotal creases |
|
| Genitalia (Female) |
Clitoris large, labia minora exposed |
Labia minora larger than labia majora |
Labia majora and labia minora equal size |
Labia majora larger than labia minora |
Labia majora completely cover the labia minora |
|
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