Feature | 36 Weeks and earlier | 37–38 Weeks | 39 Weeks & Beyond |
---|---|---|---|
Creases in soles of feet | 1 or 2 transverse creases; posterior ¾ of sole smooth | Multiple creases; anterior 2/3 of heel smooth | Entire sole, including heel, covered with creases |
Breast nodulea | 2 mm | 4 mm | 7 mm |
Scalp hair | Fine & woolly; fuzzy | Fine & woolly; fuzzy | Coarse & silky; each hair single-stranded |
Ear lobe | No cartilage | Moderate amount of cartilage | Stiff ear lobe with thick cartilage |
Testes & scrotum | Testes partially descended; scrotum small, with few rugae | Testes fully descended; scrotum normal size, with prominent rugae |