The redness and swelling of the front of the foreskin of the child may be caused by acute injury, infectious factors, allergic factors. 1. Acute injury: such as external force, resulting in localized damage to the foreskin, can make the front of the foreskin red and swollen symptoms, may also be accompanied by subcutaneous bruising and pain. 2. Infection factors: children do not pay attention to the lower body hygiene of the presence of foreskin scale, at the same time the child’s foreskin is too long, may be induced by the foreskin glans, when the infection is aggravated, the local stimulation, which can lead to redness and swelling of the front of the foreskin, accompanied by itching, pain and other symptoms. 3. Allergic factors: children use some irritating toiletries or wear poor quality underwear, so that the penis local allergic reaction, can lead to redness and swelling in front of the foreskin, accompanied by intense itching and stinging. Redness and swelling of the front of the foreskin of the child indicates the existence of abnormalities, and it is recommended to consult a doctor for appropriate examination and treatment to avoid delays in the condition.