Why Are My Arms And Legs Itchy?

Why Are My Arms And Legs Itchy? Causes of itchy skin include: Skin conditions. Examples include dry skin (xerosis), eczema (dermatitis), psoriasis, scabies, parasites, burns, scars, insect bites and hives. Internal diseases. What are itchy arms a symptom of? skin diseases such as atopic dermatitis (eczema), psoriasis, and hives. bugs like scabies, lice, bed bugs,