Waardenburg Syndrome is a group of genetic conditions involving pigment and hearing loss.

WAGR Syndrome is a rare genetic syndrome caused by the deletion of part of chromosome 11 resulting in Wilms tumor (a tumor of the kidneys), Aniridia (absence of the colored part of the eye, the iri...

Waldenstrom Macroglobulinemia is a rare form of cancer involving lymphocytes (a subtype of white blood cells).

Walker-Warburg syndrome is a rare form of autosomal recessive congenital muscular dystrophy.

Warburg Micro Syndrome is a rare disorder consisting of polymicrogyria, cataracts, microphthalmia, optic atrophy, and endocrine systemnabnormalities.

wAIHA Warriors is a group for those diagnosed or caring for someone with Warm Hemolytic Autoimmune Anemia, a rare blood disorder. The group is a forum to help provide a place to connect, as well...

Wegener's Granulomatosis is a rare form of vasculitis characterized by inflamed blood vessels that limit blood flow to the effected organs and destroy normal tissue.

Werner Syndrome is a rare genetic disorder characterized by premature aging.

West Syndrome is a rare form of epilepsy in infants.

Whipple disease results from a bacterial infection known as Tropheryma whippelii.

Williams syndrome is a rare disorder caused by a deletion of genes from the long arm of chromosome 7.

Wilms' Tumor is a tumor of the kidneys.

Wilson's Disease is a rare genetic disorder in which copper accumulates in tissues.

Wolf-Hirshhorn Syndrome is the result of partial deletion of the short arm of chromosome 4, resulting in various physical and mental conditions.

In Wolff-Parkinson-White (WPW) syndrome, an extra signaling pathway between the heart's upper and lower chambers causes a fast heartbeat (tachycardia). 

Wolfram Syndrome is a rare genetic disorder characterized by diabetes mellitus, optic atrophy, and deafness.

Wolman Disease is a rare form of lipid storage disease.