Rare Diseases and Related Terms
Rare diseases terms are either (1) terms for which information requests have
been made to the Office of Rare Diseases, the Genetic and Rare Diseases
Information Center, or the National Human Genome Research Institute; or (2)
diseases that have been suggested as being rare. The purpose of the Rare
Diseases and Related Terms list is to distribute information; although the list
is updated regularly, it should not be used as a reference or guarantee that a
condition is rare. The prevalence of a rare disease is usually an estimate and
may change over time. A rare (or orphan) disease is generally considered to have
a prevalence of fewer than 200,000 affected individuals in the United States.
Certain diseases with 200,000 or more affected individuals may be included in
this list if certain subpopulations of people who have the disease are equal to
the prevalence standard for rare diseases. We welcome suggestions for additions
to or deletions from the list. Your recommendations may be sent via e-mail to
ord@od.nih.gov
Browse by Condition
-
Waaler Aarskog syndrome
-
Waardenburg syndrome
-
Waardenburg syndrome type 1
-
Waardenburg syndrome type 2
-
Waardenburg syndrome type 2A
-
Waardenburg syndrome type 2B
-
Waardenburg syndrome type 3
-
Waardenburg syndrome, type 4
-
WAGR syndrome
-
Walbaum Titran Durieux Crepin syndrome
-
Waldenstrom macroglobulinemia
-
Waldmann disease
-
Walker Dyson syndrome
-
Wallenberg's syndrome
-
Wallerian degeneration
-
Wandering spleen
-
Warburg Sjo Fledelius syndrome
-
Warburton Anyane Yeboa syndrome
-
Warfarin syndrome
-
Warman Mulliken Hayward syndrome
-
Warm-reacting-antibody hemolytic anemia
-
Warthin's tumor
-
Waterhouse–Friderichsen syndrome
-
Watermelon stomach
-
Watson syndrome
-
WDHA syndrome
-
Weaver Johnson syndrome
-
Weaver like syndrome
-
Weaver syndrome
-
Weaver Williams syndrome
-
Weber syndrome
-
Weber-Christian disease
-
Webster Deming syndrome
-
Wegener's granulomatosis
-
Wegmann Jones Smith syndrome
-
Weinstein Kliman Scully syndrome
-
Weismann Netter Stuhl syndrome
-
Welander distal myopathy, Swedish type
-
Weleber Hecht Bigley syndrome
-
Wellesley Carmen French syndrome
-
Wells Jankovic syndrome
-
Wells syndrome
-
Werdnig-Hoffmann disease
-
Werner's syndrome
-
Wernicke-Korsakoff syndrome
-
West nile encephalitis
-
West nile virus
-
West syndrome
-
Western equine encephalitis
-
Western/Eastern/California encephalitis
-
Westphal disease
-
Weyers acrofacial dysostosis
-
Weyers ulnar ray/oligodactyly syndrome
-
WHIM syndrome
-
Whipple disease
-
Whispering dysphonia, hereditary
-
Whistling face syndrome, recessive form
-
Whitaker syndrome
-
White forelock with malformations
-
White matter hypoplasia, corpus callosum agenesia, and mental retardation
-
White platelet syndrome
-
White sponge nevus of cannon
-
Whooping cough
-
Wieacker syndrome
-
Wiedemann Grosse Dibbern syndrome
-
Wiedemann Oldigs Oppermann syndrome
-
Wiedemann Opitz syndrome
-
Wildervanck syndrome
-
Wilkes Stevenson syndrome
-
Wilkie Taylor Scambler syndrome
-
Willebrand disease, acquired
-
Willems De vries syndrome
-
Williams syndrome
-
Wilms' tumor
-
Wilms tumor and pseudohermaphroditism
-
Wilms tumor and radial bilateral aplasia
-
Wilson disease
-
Wilson-Turner X-linked mental retardation syndrome
-
Winchester syndrome
-
Winkelman Bethge Pfeiffer syndrome
-
Winship Viljoen Leary syndrome
-
Winter Harding Hyde syndrome
-
Winter Shortland Temple syndrome
-
Wisconsin syndrome
-
Wiskott Aldrich syndrome
-
Witkop syndrome
-
Wittwer syndrome
-
Wohlwill-Andrade syndrome
-
Wolcott-Rallison syndrome
-
Wolffian tumor
-
Wolff-Parkinson-White syndrome
-
Wolf-Hirschorn syndrome
-
Wolfram syndrome
-
Wolman disease
-
Woodhouse Sakati syndrome
-
Woods Black Norbury syndrome
-
Woods Leversha Rogers syndrome
-
Woolly hair, congenital
-
Woolly hair, hypotrichosis, everted lower lip and outstanding ears
-
Worster Drought syndrome
-
Worth syndrome
-
Wright Dyck syndrome
-
Wrinkly skin syndrome
-
WT limb blood syndrome
-
Wyburn Mason's syndrome
Note: If you need help accessing information in different file formats such as PDF, MP3, see .