The redness in front of the baby’s chickskin is mostly considered to be caused by factors such as circumcision and glans, mosquito bites, and trauma. 1. circumcision: mostly due to the baby foreskin is too long, cleaning is not in place and other factors lead to the accumulation of foreskin scale stimulation of the glans, the patient is mostly accompanied by penile redness, swelling, heat, pain and other symptoms. 2. Mosquito bites: baby by mosquito bites penis parts, will also appear red, swollen, pain and other symptoms. Generally do not need special treatment, daily attention to protection, avoid scratching can be. 3. Trauma: baby penis skin is delicate, daily activities by external impact, can also lead to penis redness, swelling, pain. It is recommended that patients with symptoms of discomfort should go to the hospital in a timely manner, improve the relevant diagnosis, to be the appropriate treatment program, to avoid the delay of self-medication.