What is pruritis?

A.  Scaling of the skin

B.  Severe itching

C.  A blister

The correct answer is (B) – Severe itching.  This is the medical term for itching. It may be associated with underlying systemic illnesses or may be a bothersome itch.  Pruritus is a cutaneous sensation sharing neural receptors and pathways with pain but is characterized by its own precipitants, potentiators, and range of severity. Among patients with generalized pruritus, the prevalence of systemic disease has been reported as 10% to 50%, with renal, hepatic, hematopoietic, or endocrine causes most commonly identified. Malignant neoplasms, neurologic disorders, certain drugs, or advanced age also may be responsible.