A bag on the surface of the foreskin skin may be caused by sebaceous cysts, mosquito bites, acute injuries, warts and other factors.
1. Sebaceous cysts: a long time without cleaning the foreskin, the foreskin dirt more, can lead to sebaceous gland duct blockage, oil can not be discharged normally, the accumulation of the skin, it will lead to sebaceous cysts, so that there is a bag on the foreskin.
2. Mosquito bites: at night when sleeping, the male penis localized by mosquito bites, mosquito bites, can lead to local bags, accompanied by redness, itching and other symptoms.
3. Acute injury: such as excessive pressure, external blow, resulting in localized damage to the foreskin, causing symptoms of swelling, can lead to localized bag, accompanied by pain, redness, subcutaneous bruising and other symptoms.
4. Condyloma acuminatum: Men who have unclean sex may suffer from condyloma acuminatum, which can lead to localized cauliflower-like swellings on the penis, accompanied by mild itching as well as tingling, and is highly contagious.
The above symptoms may also be caused by other factors, it is recommended that the patient to go to the regular hospital for treatment, and strive for a speedy recovery.