What causes dyshidrotic eczema?

The causes of dyshidrotic eczema are diverse and complex, primarily including the following factors: 1. **Genetic factors**: Some patients with dyshidrotic eczema have an allergic constitution. They or their blood relatives may have a history of allergies such as asthma, urticaria, or allergic rhinitis, which increases the risk of developing dyshidrotic eczema. 2. **Environmental factors**: Some patients may have allergies to metals such as nickel and chromium. Limiting contact with these metals can effectively prevent dyshidrotic eczema. Additionally, exposure to irritating substances such as detergents, soaps, bacteria, viruses, or medications may trigger a defensive reaction in the body, leading to allergic reactions and the development of dyshidrotic eczema. 3. **Infectious factors**: The onset of dyshidrotic eczema is closely related to microbial infections such as Staphylococcus aureus, Malassezia, and airborne fungi. These infectious agents may be associated with the patient's living environment. 4. **Gastrointestinal diseases**: Gastrointestinal dysfunction can affect the body's immunity, making it more difficult to resist bacterial infections and thus increasing the likelihood of dyshidrotic eczema. 5. **Psychological factors**: Prolonged stress, excessive fatigue, emotional depression, and lack of sleep may also act as triggers for dyshidrotic eczema. If you have any concerns, please consult a healthcare professional.