The difference between seborrheic dermatitis and hormone-dependent dermatitis lies in the following aspects: 1. Etiology: seborrheic dermatitis is mainly due to vitamin or trace element deficiency, or viral infections, allergic factors and so on. Hormone-dependent dermatitis is mainly due to the irritation caused by the long-term topical use of glucocorticoid ointments, such as dermaplanin, dinaide or mometasone furoate cream, etc. 2. Rash manifestation: seborrheic dermatitis can appear as light red patches on the sebum-rich parts of the face, which can be covered with fine adherent or dry scales. Hormone-dependent dermatitis can appear on the face as erythema, papules, pustules, capillary dilation and other manifestations.