• People with Down syndrome present varied levels of intellectual and physical disabilities. The affected children and adults have some distinct facial features, but not all affected individuals will have the same set of features. Some of the common features are as follows:
• Small skull
• Upward slant of eyes and epicanthic folds
• Oblique palpebral fissure
• Nose is small with the flat nasal bridge
• Mouth has a narrow short palate with small teeth and furrowed protruding tongue
• Ears are small and dysplastic
• Hands are short and stubby
• Single crease on the hand (simian crease) at birth
• Delayed development and behavioral problems
• Cognitive disability

Common symptoms and their severity as reported by people on Patientslikeme.

All affected children will not have complications but some may have the associated complications such as:

• Heart defects: septal defect and hole in the heart.
• Gut problems: constipation, diarrhea and indigestion are all more common.
• Hearing problems: permanent, build-up of fluid in the middle ear (glue ear) is a common cause of temporary hearing problems in children with Down syndrome.
• Vision problems
• Thyroid problems: means that their thyroid gland is underactive.