患儿,女,一个月。足月顺产,无宫内窘迫,生后无窒息,母孕期无异常,第一胎第一产,生长发育好,大小便正常。在就诊前四天发现患儿左侧大阴唇轻微红肿,家长未予重视。后因上感一天就诊,入院后查体发现左侧大阴唇红肿明显,且红肿日渐加重,周围组织无异常,肛门及外阴无畸形,肛周无红肿。入 Children, women, a month. Full-term follow-up, no intrauterine distress, no suffocation after birth, no abnormalities during pregnancy, the first birth of the first birth, growth and development, normal urine. Four days before the visit found that the left labia majora slightly inflamed, parents did not pay attention. After the day because of the sense of treatment, after admission examination found that the left labia majoramporal swelling was obvious, and the swelling is getting worse, no abnormality around the organization, anus and vulva no deformity, perianal redness. Into