There is a layer of white stuff on the glans mostly for the foreskin scale, common causes are physiological factors and infections caused by the foreskin glansitis and so on. 1. Physiological factors: male glans, foreskin mucosa every day there will be mucosal cells, skin cell metabolism, necrosis and shedding, is a normal metabolic process, while mixing greasy secretions, will form the surface of the glans or coronal groove of the prepuce scale, no accompanying symptoms, as long as the diligent bathing, diligent change of underwear, to maintain a local personal cleanliness and hygiene can be. 2. Infection caused by the foreskin glans: infection caused by inflammatory stimulation so that the glans surface covered with a layer of white secretion, accompanied by local itching, redness, swelling or the formation of erythema, ulcers and so on. Including fungal infection, bacterial infection and trichomonas infection. (1) Fungal infection: It is recommended to use sodium bicarbonate solution for local cleaning, remove the secretion and keep it dry, apply miconazole ointment or clotrimazole ointment. (2) Bacterial infection: It is recommended to use potassium permanganate solution to wash away the white secretion and apply erythromycin ointment or mupirocin ointment. (3) Trichomonas infection: it is recommended to use metronidazole solution to wash, remove the white secretion, apply metronidazole gel or oral metronidazole tablets. Excluding physiological factors, patients need to consult a doctor in a timely manner to clarify the factors of infection, follow the doctor’s instructions for appropriate treatment, avoid unauthorized use of drugs.