Q. What is eczema, and what causes it?

Doctor Answer is medically reviewed by SecondMedic medical review team.

Answered by Secondmedic Expert

Eczema, also known as atopic dermatitis, is a chronic skin condition characterized by inflammation and irritation of the skin. It often appears as red, itchy rashes that can occur on various parts of the body. Eczema is a common condition, particularly in children, but it can affect people of all ages.

The exact cause of eczema is not fully understood, but it is believed to result from a combination of genetic, environmental, and immune system factors. Here are some key points about the potential causes of eczema:

1. Genetics: Eczema tends to run in families, suggesting a genetic component. If one or both parents have eczema, their children are more likely to develop the condition.

2. Immune system dysfunction: People with eczema often have an overactive immune system that responds to irritants or allergens by causing inflammation in the skin. This inflammation leads to the characteristic symptoms of eczema, such as redness, itching, and rash.

3. Skin barrier dysfunction: In individuals with eczema, the skin's natural barrier, which helps retain moisture and protect against irritants, is compromised. This makes the skin more susceptible to irritants, allergens, and infections.

4. Environmental factors: Triggers such as exposure to allergens (like pollen, pet dander, or dust mites), harsh weather conditions, certain fabrics, soaps, and skincare products can exacerbate eczema symptoms.

5. Food allergies: Some individuals with eczema may have food allergies that can exacerbate their skin condition. Common allergens include dairy, eggs, nuts, and wheat.

6. Stress: Emotional stress can trigger or worsen eczema symptoms in some people.

It's important to note that eczema is a chronic condition, meaning there is no known cure. However, various treatments and lifestyle changes can help manage and alleviate its symptoms. If you or someone you know is dealing with eczema, it's advisable to consult a healthcare provider, such as a dermatologist, for an accurate diagnosis and personalized treatment plan

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