Itchy white flakes on the body, consider, psoriasis, chronic eczema, white furfur, tinea corporis, pityriasis rosea and so on. 1. Psoriasis: is a chronic scaly skin disease, the onset of factors are not completely clear, may be genetic, environmental, infection and other factors together. Typical symptoms are red patches on the surface of the skin covered with silvery-white scales. 2. Chronic eczema: this is a kind of chronic inflammatory skin disease with obvious oozing tendency, mostly caused by acute eczema, the skin will be hypertrophied, appearing dark red patchy lesions, and accompanied by scales. 3. White furfury: the cause of white furfury is not clear, considered and microbial infection, vitamin deficiency, malnutrition, etc., mainly will appear round or oval pigmentation spots, covered with fine white flakes, may be accompanied by itching symptoms. 4. Tinea corporis: Tinea corporis is a fungal infection that occurs in the superficial parts of the skin, it is a contagious disease that spreads through direct or indirect contact, the more common ones are Trichophyton rubrum, plaster-like microsporidia, etc. These fungi grow and multiply in the skin area, which will cause skin symptoms, starting with red papules, then forming red patches, covered with scales. 5. pityriasis rosea: the cause of pityriasis rosea is not clear, may be related to viral infections, is a common self-limiting inflammatory skin diseases, lesions are mainly covered with chaffy scales rose-colored macules. Itchy white flakes on the body, you should go to the hospital for a detailed examination, for the cause of the symptomatic treatment.