WAase syndrome
WAntiphospholipid syndrome
WArakawa's syndrome II
WATR-16 syndrome
WBanti's syndrome
WBernard–Soulier syndrome
WChromosome 5q deletion syndrome
WErdheim–Chester diseaseWFechtner syndrome
WPolycythemia
WGiant platelet disorderWGray platelet syndrome
WHemolytic–uremic syndromeWHermansky–Pudlak syndrome
WHoyeraal–Hreidarsson syndrome
WJacobsen syndromeWMcLeod syndrome
WMyelodysplastic syndrome
WPlummer–Vinson syndrome
WHaemophilia C
WThrombotic thrombocytopenic purpura
WUpshaw–Schulman syndrome
WVaginal anomalies