What is the primary cause of dermatitis?

The primary cause of dermatitis is inflammation of the skin resulting from irritation, an allergic reaction, or an infection. This inflammation can manifest in various forms, such as redness, swelling, itching, and flaking of the skin. Dermatitis can occur due to a variety of irritants or allergens, including soaps, detergents, certain plants, and even metals. When the skin comes into contact with these substances, the immune system may react by causing inflammation, leading to the symptoms associated with dermatitis.

While other options, such as chronic conditions or genetic factors, can contribute to skin issues, they are not the main cause of dermatitis itself. Overexposure to sunlight can lead to different skin conditions but is not a direct cause of dermatitis. Understanding the specific triggers that can lead to dermatitis helps in prevention and treatment, emphasizing the importance of identifying irritants or allergens in an individual's environment.