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Springer Science and Business Media LLC Bulletin of the National Research Centre 48(1)
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    Abstract Background Dengue fever (DF) is a viral illness caused by the dengue virus transmitted by Aedes aegypti mosquitoe. It manifests with a range of symptoms, from mild DF to severe forms like dengue hemorrhagic fever and dengue shock syndrome. Common symptoms include fever, headache, rash, muscle and joint pain, and itching. The relationship between itching and clinical improvement in dengue patients remains unclear. Case presentation A retrospective analysis was conducted on hospital data from a tertiary care centre in South India from April 2021 to April 2023. Patients diagnosed with dengue fever (confirmed by Immunoglobulin (Ig) M and Non-Structural protein (NS) 1 positivity) who experienced itching were included. Clinical details, age, sex, and laboratory findings were collected. A total of 261 patients were examined. Itching typically occurred around day eight from fever onset and was associated with improved platelet count and hematocrit levels. Conclusions Dengue fever, caused by the dengue virus, presents with various symptoms, including itching during the recovery phase. Studies suggest a correlation between itching and clinical improvement in dengue patients, indicating itching as a potential prognostic marker. Possible mechanisms for itching include direct viral infection of skin cells and cytokine release. However, further research is needed to understand this association fully. Despite limitations such as retrospective analysis, these findings highlight the significance of itching in dengue prognosis and emphasise the need for large-scale studies.

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