Diffuse flushing refers to a group of symptoms characterized by flushing and edema of the skin in multiple areas of the body. There are many causes of generalized flushing, so it is important to detect them in time and treat them according to the different causes. The following diseases are the causes of generalized flushing: 1. Dislocation dermatitis Dislocation dermatitis is a relatively common skin disease in infants and children. It occurs mainly on the head and face, but can also be severe on the trunk and extremities. The main allergenic original house dust (mites), animal feathers, fungi, pollen and things such as milk, eggs, fish, shrimp and other proteins, in addition, climate changes, infections, etc. often make the condition worse. 2, erythroderma (erythroderma), also known as exfoliative dermatitis (oxfoliotive dermatitis), is a kind of involvement of the whole body to diffuse flushing, persistent massive flaking mainly severe chronic inflammatory skin disease. Chinese medicine believes that this is due to the heart fire, external poisonous evil, poisonous heat into the blood camp, and the burnt qi and blood, burning fluids, skin loss of nourishment and caused. Or eat into the taboo, poisonous evil into the internal organs of the muscle coup and the onset. Skin mucinous tumor (cutaneous myxomas) is a solitary flesh-colored nodule that occurs on the face, trunk or limbs. Cutaneous mucinous tumors can also be one of the symptoms of Carney syndrome. Among them, cutaneous mucinous tumors are multiple skin-colored papules less than 1 cm. Adenoid cystic carcinoma of the skin occurs mainly in salivary glands, followed by lacrimal glands, cerumen glands and mucus glands of the upper respiratory tract, but also in skin in a few patients, mainly in the head and chest. 5, psoriasis Psoriasis, commonly known as psoriasis, is a common and easily recurring chronic inflammatory skin disease, characterized by red papules or plaques covered with multiple layers of silvery white scales. It is most prevalent in young adults, more in men than in women, and more in the north than in the south, and is more likely to occur or worsen in spring and winter, and to remit in summer and fall. The etiology and pathogenesis of the disease are not completely clear, and studies have found that the onset of the disease is related to genetic factors, streptococcal infection, abnormal immune function, metabolic disorders and endocrine changes. There are four clinical types: the common type, the pustular type, the erythrodermic type and the arthritic type. Psoriasis vulgaris is the most common and mild. The disease is chronic and is prone to relapse after cure. 6.Desquamative erythroderma desquamativum (erythroderma desquamativum), also known as Leiners disease (Leiners disese), is seen in infants within 2 months of age, with clinical manifestations of diffuse flushing and desquamation of the skin. The clinical manifestation is diffuse flushing of the skin. It is caused by deficient endowment, acquired disorders, weakness of the spleen and stomach, and loss of skin nourishment.