The glans has erythema and also flakes may be caused by personal bad habits such as: poor hygiene, diet, and eczema, bacterial glans, trichomonas glans, amebic glans and other diseases, should be timely consultation, clear cause. 1. Bad life habits: poor personal hygiene, excessive consumption of spicy and stimulating food, as well as tobacco and alcohol, can cause the glans localized mucous membrane is relatively dry, easy to flake, by improving the diet and improve personal hygiene, can be restored and improved. 2. glans eczema: glans contact with some allergic substances can cause glans area to appear erythematous papules and so on, accompanied by obvious itching, severe may appear erosion. 3. Bacterial glans: if there is a long prepuce, the local secretion is easy to combine with bacterial infection, there will be erythema and flaking, and some of them will have a bad smell. 4. Trichomonas glans: the decline of their own resistance, caused by trichomonas infection, the glans area will appear superficial ulcers, erythema and desquamation. 5. Amebic glans: On the basis of glans, infection with amebic pathogens can cause amebic glans. It can be seen as a well-defined erythema with blisters on top of the erythema, and is accompanied by obvious itching. When the erythema of the glans appears and is accompanied by flakes, after excluding physiological factors, it is necessary to consult a doctor in time to clarify the cause of the disease and follow the doctor’s instructions to standardize the treatment.