Foreskin pain may be caused by acute injury, infectious factors, allergic factors. 1. Acute injury: the foreskin localized by external force or foreign body stimulation, so that the foreskin local damage, it will cause the symptoms of foreskin pain, may also be accompanied by swelling, bleeding and other symptoms. 2. Infectious factors: men have a long foreskin, do not pay attention to care, may induce fungal or bacterial phimosis, due to inflammatory substances stimulation, will cause foreskin pain, accompanied by itching, pain and other symptoms. 3. Allergic factors: men use poor quality condoms, or contact with irritating toiletries, so that the foreskin localized allergic reaction, it will cause foreskin pain, may also be accompanied by intense itching. If the symptoms of foreskin pain continue to worsen or recur, it is recommended to seek medical attention for examination and treatment to avoid adverse effects.