• The skull is a bit smaller
• The skull is broad and short
• The backs of there heads are flatter than normal
• At the back of a newborns head they have a 'soft spot' and a baby with Down syndrome, that 'soft spot' it will take much longer to close and is will close much later than normal
• On the back of there neck it will often have extra skin
• There Shape of there face will often be round as a baby and will get oval shape as they get older
• Because there lack of development the face look flat
• There nose is smaller
• An the bridge of the nose is flatter
• They have rounder cheeks
• There mouth is smaller and the corners of there mouths are pointing downwards
• The usually stick out because of oral cavities
• There teeth a develop late and in a unusual order
• The teeth are unusually shaped and small

• The opening of the eye is slanted upwards and smaller then normal
• There are small white spots on the iris
• Folds of skin that cover the corners of the eye

• There ears are smaller
• They are slightly lower on the head
• They can be cupped or the upper part of the ear is folded over
• This then makes the ear a square shape
• The ear passage may be smaller so it is easily blocked and if not treated, this could lead to hearing loss

• There hands may be wide and short
• There fingers are shorter than normal
• The fifth finger may curve inwards and have one crease instead of two
• The also have a one deep palm crease instead of two
• There feet are wide
• There is a gap between the two toes

intellectual ability and physical ability

• delayed development
• learning disability
• short stature
• speech delay in a child
• difficulty thinking and understanding
• brachycephaly
• upslanting palpebral fissures
• atlantoaxial instability
• congenital heart disease
• Low muscle town
• Loose joints
• immune deficiency
• mouth breathing
• obesity
• obstructive sleep apnea
• polycythemia
• seborrheic dermatitis
• thyroid disease
• vision disorder