Pruritus is seen in about 4% of the population. It is seen in malignancies, especially hematological malignancies such as polycythemia vera. Uremia and biliary cirrhosis are other diseases in which a significant percentage of patients may have pruritus.
Itch epidemiology and demographics
Bedwetting epidemiology and demographics
Bejel epidemiology and demographics
Haff disease epidemiology and demographics
Deafness epidemiology and demographics
Paranoiac knowledge
Historical definitions of race
Anxiety epidemiology and demographics