The Itch-Scratch Cycle: A Review of the Mechanisms
Background: Despite being one of the most common presenting dermatological symptoms, itching continues to perplex health care professionals because it is notoriously difficult to control. Objective: This review gathers evidence to answer the 2-part question, “Why do we itch and scratch?” by expl...
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| Format: | article |
| Language: | EN |
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Mattioli1885
2019
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| Subjects: | |
| Online Access: | https://doaj.org/article/5977c6b9bee54e198fb8294bd4730a79 |
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| Summary: | Background: Despite being one of the most common presenting dermatological symptoms, itching continues to perplex health care professionals because it is notoriously difficult to control.
Objective: This review gathers evidence to answer the 2-part question, “Why do we itch and scratch?” by exploring the history of itchy disease, the neurobiology of itch, and the 4 different clinical origins of itch: pruritogenic, neurological, neuropathic, and psychological.
Results: The automated scratching reflex and its biological and psychological reasons for existence are complicated and poorly understood. Currently, there are a myriad of treatments available for individuals suffering from this condition; however, many remain symptomatic.
Conclusions: The itch-scratch cycle is a complex pain-like sensation with a reflex-like response. In the future, continued exploration into the mechanisms behind itch and scratch may open the doors for new therapeutic interventions.
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