What is uremic pruritus and how is it treated?

• A. Itching due to dry skin; treated with moisturizers only
• B. Itching associated with CKD; treatment includes skin care, optimized dialysis, antipruritics, and addressing iron status and calcium-phosphate balance
• C. Itching caused by an allergic reaction; treated with antihistamines alone
• D. Itching not related to CKD

Answer: (B)

Uremic pruritus is itching that occurs with chronic kidney disease, especially in those on dialysis. It comes from multiple factors in CKD, including dry, xerotic skin, inflammatory and neuropathic changes, and disturbances in mineral metabolism. Because of this, the best approach is multi-pronged: start with good skin care to relieve dryness and irritants; optimize dialysis to better remove uremic toxins; use antipruritics for symptom relief (topical moisturizers and, when needed, systemic options such as certain agents like gabapentinoids, with antihistamines considered mainly for sleep rather than as a sole solution); and address underlying CKD-related abnormalities by monitoring and correcting iron status and calcium–phosphate balance. This combination tackles both the local skin symptoms and the systemic contributors that drive the itch. In contrast, itching caused purely by dry skin or by an allergic reaction would not require the same CKD-focused, multi-factor approach, and itching not related to CKD would call for a different evaluation and management strategy.