Final answer:
Atopic dermatitis, commonly known as eczema, often affects the flexor surfaces of the body, such as the insides of the elbows and behind the knees.
Step-by-step explanation:
A common site for atopic dermatitis, often referred to as eczema, is the flexor surfaces of the body. Atopic dermatitis is characterized by dry, itchy patches of skin that can resemble rashes and may also present with swelling, flaking, and in severe cases, bleeding. While it can affect various parts of the body, flexor surfaces such as the insides of the elbows and behind the knees are frequently involved. This condition may be associated with an allergic response and is frequently managed with treatments including moisturizers, corticosteroid creams, and immunosuppressants.