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: Down syndrome or DS is a chromosomal syndrome which occurs as a result of an extra chromosome and is the most common disorder of that type. Symptoms include distinctive spacing of the facial features, impaired cognitive ability, stunted physical growth and an increased risk of congenital heart disease.