X-linked progressive cerebellar ataxia

X-linked recessive

Childhood

X-linked recessive ocular albinism

X-linked recessive

Infancy, Neonatal

X-linked reticulate pigmentary disorder

X-linked dominant

Childhood

X-linked scapuloperoneal muscular dystrophy

X-linked dominant

Adult

X-linked severe congenital neutropenia

X-linked recessive

Infancy, Neonatal

X-linked sideroblastic anemia

X-linked recessive

All ages

X-linked sideroblastic anemia and spinocerebellar ataxia

X-linked recessive

Childhood, Infancy

X-linked spastic paraplegia type 16

X-linked recessive

Infancy

X-linked spastic paraplegia type 34

X-linked recessive

Adolescent, Adult, Childhood

X-linked spasticity-intellectual disability-epilepsy syndrome

X-linked recessive

Infancy, Neonatal

X-linked spinocerebellar ataxia type 4

X-linked recessive

Adult

X-linked spondyloepimetaphyseal dysplasia

X-linked recessive

XMEN

X-linked recessive

Adolescent, Adult, Childhood

XYLT1-CDG

Autosomal recessive

Infancy, Neonatal

Xanthoma disseminatum

Not applicable

Adolescent, Adult, Childhood

Xeroderma pigmentosum

Autosomal recessive

All ages

Xeroderma pigmentosum variant

Autosomal recessive

Adolescent, Adult

Xeroderma pigmentosum-Cockayne syndrome complex

Autosomal recessive

Infancy, Neonatal

Xp21 deletion syndrome

Infancy, Neonatal

Yellow fever

All ages

Yolk sac tumor

Not applicable

Adolescent, Adult

Young adult-onset distal hereditary motor neuropathy

Autosomal recessive

Adult

Young syndrome

Unknown

Adult

Young-onset Parkinson disease

Autosomal recessive

Adult