The thinning of the foreskin may be the need to wipe the medicine, consider and foreskin injury, infection, masturbation and other factors related to the need to go to the hospital for further examination to clarify the cause of the diagnosis and treatment. 1. foreskin injury: generally due to the foreskin by more intense impact or extrusion, resulting in the skin of the foreskin by a certain damage, thus causing the phenomenon of thinning of the foreskin, can be under the guidance of the doctor, erythromycin ointment, clindamycin gel and other medications, can be achieved by anti-inflammatory effects. 2. Infection: usually due to the foreskin is too long, and the penis around the health cleaning is not appropriate, so that it produces infection, under the stimulation of inflammation, the phenomenon of thin foreskin, can follow the doctor’s instructions to use fusidic acid cream, compound polymyxin B ointment and other drugs to treat. 3. Masturbation: may be due to long-term masturbation, resulting in excessive friction of the penis, so that the skin around the penis damage, thus causing the phenomenon of thin foreskin. Masturbation is usually not treated with medication or surgery, but can be treated through psychological means. If you have a thin foreskin, you should go to the hospital in time to avoid delays and adverse consequences.