Itchy skin symptoms in diabetes
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Prevalence and Characteristics of Itchy Skin in Diabetes
Itchy skin, or pruritus, is a common but often underestimated symptom in both type 1 and type 2 diabetes. Studies show that itch affects about 22% of children with type 1 diabetes and up to 36% of adults with type 2 diabetes, with varying intensity and impact on daily life Stefaniak2020Stefaniak2021. The itch is often localized, most frequently affecting the upper and lower limbs and sometimes the trunk Stefaniak2020Mearza2020. In some cases, itch can even be the first or only symptom of newly diagnosed diabetes, especially in type 2 diabetes .
Causes of Itchy Skin in Diabetes: Skin Dryness and Neuropathy
The main causes of itchy skin in diabetes are skin dryness (xerosis) and diabetic polyneuropathy. Poor blood sugar control leads to changes in skin hydration, making the skin dry and more prone to itching Stefaniak2020Stefaniak2021Stefaniak2019. Diabetic neuropathy, which is nerve damage caused by long-term high blood sugar, also contributes to the sensation of itch Stefaniak2021Stefaniak2019Buenfil2023. Inflammation and changes in nerve function, including increased activity of certain receptors and inflammatory pathways, have also been linked to chronic itch in diabetes .
Impact on Quality of Life and Mental Health
Itchy skin in diabetes can significantly affect quality of life. Even moderate itch intensity is linked to sleep disturbances, anxiety, depression, and social discomfort Stefaniak2020Stefaniak2021. The psychological burden is higher in those with more severe itch, and the impact is seen in both children and adults Stefaniak2020Stefaniak2021.
Device-Related Itchy Skin in Diabetes Management
For people with type 1 diabetes using continuous glucose monitoring (CGM) or insulin pumps, skin reactions such as redness, itchiness, and rashes are common. Up to 60% of users report skin problems related to these devices, and some even stop using them because of the discomfort Severin2018Rigo2020. These reactions are not linked to age, sex, or ethnicity, but are more common in those using both CGM and insulin pumps together Severin2018Rigo2020.
Treatment and Management of Itchy Skin in Diabetes
There is no single best treatment for diabetic itch, but moisturizing the skin with emollients can provide relief for many patients Stefaniak2019Zamroni2023. In some cases, combination therapies such as massage with virgin coconut oil have been shown to reduce both skin dryness and itch intensity . For device-related itch, using different skin care products or consulting a dermatologist may help Severin2018Rigo2020. Good blood sugar control is also important, as it can reduce the risk and severity of itch Stefaniak2021Mearza2020.
Conclusion
Itchy skin is a frequent and sometimes early symptom of diabetes, caused mainly by skin dryness and nerve damage. It can significantly affect quality of life and may be worsened by diabetes management devices. Moisturizing the skin, managing blood sugar, and addressing device-related reactions are key steps in reducing itch in people with diabetes.
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