Causes of Ankle Pain. 1  Ankylosing Spondylitis Ankylosing spondylitis is a type of arthritis that causes chronic inflammation of the spine. 2  Arthritis Arthritis is inflammation of one or more joints. 3  Broken Bone (Types of Bone Fractures) A broken bone is a fracture.
Down syndrome is a chromosomal condition that is associated with intellectual disability, a characteristic facial appearance, and weak muscle tone (hypotonia) in infancy. All affected individuals experience cognitive delays, but the intellectual disability is usually mild to moderate.
Down Syndrome is a genetic condition that causes delays in physical and intellectual development. Statistics indicate that Down Syndrome occurs about 1.36 times in every 1,000 live births; currently, more than 350,000 people in the United States have been diagnosed with Down Syndrome.