How Is Persistent Itching Diagnosed?
How Is Persistent Itching Diagnosed?
The Diagnostic Approach
Persistent itching can be a puzzle to solve. Learn how doctors diagnose the underlying causes of pruritus.
Contents
- Initial Evaluation Steps
- Laboratory and Imaging Tests
- Skin Biopsy and Other Tests
Initial Evaluation Steps
When evaluating pruritus, doctors first determine if there are primary skin lesions present. This helps differentiate between dermatologic and systemic causes of itching.
Laboratory and Imaging Tests
In cases of generalized pruritus without skin lesions, blood tests and imaging studies may be needed to uncover systemic diseases. These tests help rule out conditions like liver disease or thyroid disorders.
Skin Biopsy and Other Tests
For certain skin conditions, a skin biopsy might be necessary to identify the specific disorder. Additionally, tests for skin infections or allergies may be conducted based on the patient's history.
FAQs
What is the first step in diagnosing pruritus?
Doctors first check for primary skin lesions to determine the cause of itch.
Are blood tests useful for diagnosing pruritus?
Yes, blood tests can help identify systemic causes of itching.
When is a skin biopsy needed?
A skin biopsy is needed when skin conditions are suspected but not clearly identified.
Wrapping Up
Accurate diagnosis is crucial for addressing persistent itching effectively.
Additional References
- Greco PJ, Ende J. Pruritus: a practical approach. J Gen Intern Med 1992; 7:340.
- Yosipovitch G. Epidemiology of itching in skin and systemic disease. In: Itch: Basic Mechanisms and Therapy, Yosipovitch G, Greaves MW, Fleischer Jr AB, McGlone F (Eds), Marcel Dekker, New York 2004. p.183.
This article has been reviewed for accuracy by one of the licensed medical doctors working for Doctronic.