Similar clinical lesions cause different types of endogenous eczema in certain body regions. Atopic eczema: It is a type of itchy eczema that is seen in childhood and is usually seen in family history with allergic conditions such as asthma and hay fever. Seborrheic dermatitis: characterized by oily dandruff in areas of the skin where sebaceous sebaceous glands are common (eg, scalp, face, back and chest). Numular dermatitis: is seen on the arms and legs in the form of round, raised plaques of scaly skin. Stasis dermatitis: It is seen as itchy dandruff brown spots and enlarged varicose structures on the inside of the ankle. Dyshidrotic eczema: Water blisters on the palms and soles are pinpoint-sized merged lesions on the sides of the fingers. Xerotic eczema (dryness eczema): It is a subtype of eczema that is observed especially in elderly people and legs, characterized by porcelain crack-like peeling as a result of moisture loss, drying and scaling of the skin. Some cholesterol-lowering antihyperlipidemic drugs, alcohol-containing disinfectant products and excessively hot bath habits can cause xerotic eczema.

Exogenous contact eczema is of 2 types, allergic and irritant. Allergic eczema: Eczema that occurs as a result of an allergic response to a product applied to the skin surface, while Irritant eczema: It is eczema caused by the irritation effect of a product applied to the skin surface. The most common causes of contact eczema are soap, detergent, etc. in irritant eczema while chemicals are nickel, latex, scented creams, make-up products and perfumes in allergic eczema.