When looking from a distance, it may seem like eczema, atopic dermatitis, and psoriasis are the same but there are some clear differences in how these conditions present
What Causes Eczema and Atopic Dermatitis?
There is no one clear cause of atopic dermatitis and other types of eczema, although doctors believe that both conditions are a byproduct of an overactive immune system. Usually, people with eczema also have a family member with the condition, indicating there may be some sort of genetic link. They also usually have an associated allergy or respiratory condition, such as hay fever, which can trigger their eczema and make it worse. Notably, the most prevalent symptom of eczema and atopic dermatitis is itching. In fact, individuals with these conditions can experience severe itching that prompts them to scratch their skin until it bleeds.
What Causes Psoriasis?
Psoriasis, however, is a clear autoimmune condition that usually appears between adolescence and early adulthood (about 15 to 35); it is rare for psoriasis to occur in infants and children. Psoriasis occurs when the immune system mistakenly attacks healthy skin cells, leading to rapid turnover of skin cells and the formation of thick, inflamed plaques. Like eczema, the exact cause of this condition is not clear, but, again, there tends to be a genetic component to it.