A white film on the glans may be foreskin scale, which may be caused by factors such as inadequate cleaning or glansitis. For circumcised patients, due to the narrow opening of the foreskin of those who have difficulty urinating, thin urine line, puffing up of the foreskin and so on. When the environment inside the foreskin is poor or when cleaning is not in place, it is easy to lead to the secretion produced by the inner and outer plates of the foreskin after being subjected to inflammatory stimulation. Moreover, urine accumulates in the foreskin sac, which also often stimulates the foreskin and the head of the penis, prompting it to produce secretions and epidermal shedding, forming excessive foreskin scale and forming a white film on the glans. As the foreskin scale accumulates under the foreskin, it can induce glansitis. For example, mycosis fungoides, when infected with mycobacteria, also stimulates an increase in the amount of foreskin scale, forming a white film on the glans. If it is the accumulation of foreskin scale, it should be cleaned in time and pay attention to perineal hygiene. If it is caused by glans, you should seek medical attention, follow the doctor’s instructions for further examination, and target treatment or therapy with the doctor’s help.