What causes redness and itching of the palms?

Redness and itching of the palms can be caused by various factors, mainly including: 1. Allergic dermatitis: Contact with or inhalation of certain allergens such as pollen, foods, or chemicals can cause allergic reactions on the palm skin, resulting in symptoms such as redness and itching. 2. Eczema: Localized eczema on the palms may be caused by excessive secretions or infection, presenting as skin infiltration, thickening, intense itching, and in severe cases, dark red patches and blisters may appear. 3. Chilblains: In cold environments, uneven distribution of blood vessels or reduced activity in the palms can lead to poor circulation, causing chilblains with symptoms of redness and itching. 4. Unhealthy lifestyle habits: Poor lifestyle habits such as high stress, staying up late, and alcohol consumption may also cause abnormalities in palm skin, such as redness and itching. 5. Other factors: Chronic diseases such as chronic hepatitis and cirrhosis may also cause redness and itching of the palms. The causes of redness and itching in the palms are diverse, and diagnosis and treatment should be based on specific symptoms.