Score Sheet

Select one option for each sign. The total score maps to an estimated gestational age.

Tip: On mobile, scroll the table left/right.
SIGN NEUROMUSCULAR MATURITY SCORE SIGN SCORE
-1012345
Posture posture 0
posture 1
posture 2
posture 3
posture 4
Square window square -1
square 0
square 1
square 2
square 3
square 4
Arm recoil arm 0
arm 1
arm 2
arm 3
arm 4
Popliteal angle pop -1
pop 0
pop 1
pop 2
pop 3
pop 4
pop 5
Scarf sign scarf -1
scarf 0
scarf 1
scarf 2
scarf 3
scarf 4
Heel to ear heel -1
heel 0
heel 1
heel 2
heel 3
heel 4
SIGN PHYSICAL MATURITY SCORE SIGN SCORE
-1012345
Skin Sticky, friable, transparent
Gelatinous, red, translucent
Smooth pink, visible veins
Superficial peeling/rash, few veins
Cracking, pale areas, rare veins
Parchment, deep cracking, no vessels
Leathery, cracked, wrinkled
Lanugo None
Sparse
Abundant
Thinning
Bald areas
Mostly bald
Plantar surface Heel-toe 40–50mm: -1 (<40mm: -2*)
>50mm, no crease
Faint red marks
Anterior transverse crease only
Creases anterior 2/3
Creases over entire sole
Breast Imperceptible
Barely perceptible
Flat areola, no bud
Stippled areola, 1–2mm bud
Raised areola, 3–4mm bud
Full areola, 5–10mm bud
Eye / ear Lids fused (loosely: -1; tightly: -2*)
Lids open; pinna flat; stays folded
Slightly curved pinna; soft; slow recoil
Well-curved pinna; soft but ready recoil
Formed & firm; instant recoil
Thick cartilage; ear stiff
Genitals (male) Scrotum flat, smooth
Scrotum empty, faint rugae
Testes in upper canal, rare rugae
Testes descending, few rugae
Testes down, good rugae
Testes pendulous, deep rugae
Genitals (female) Clitoris prominent & labia flat
Prominent clitoris & small labia minora
Prominent clitoris & enlarging minora
Majora & minora equally prominent
Majora large, minora small
Majora cover clitoris & minora
Disclaimer: All calculations must be confirmed before use. The suggested results are not a substitute for clinical judgment.