Seborrheic dermatitis yellow crusting does not mean it is more serious, most of the seborrheic dermatitis belongs to the type of crusting. Seborrheic dermatitis occurs in the head, face, chest and back, etc. The cause of the disease is still unclear, and may be related to the increase of lipids, the skin’s barrier function is impaired, and the Malassezia fixation and other factors. Seborrheic dermatitis is characterized by two types of skin lesions, one scaly and the other crusty. The crusting type is characterized by thick flaky, adherent greasy crusts, and inflammation is evident under the crusts, with oozing and erosion in the middle of the crusts. So seborrheic dermatitis yellow scabs does not mean more serious, is a normal progression of the disease. Seborrheic dermatitis should be timely medical treatment, follow the doctor’s instructions to take appropriate treatment measures, while regulating the mentality, to ensure adequate sleep, regular life and diet, quit smoking and alcohol and stimulate spicy ingredients.