Periumbilical abscess can be caused by trauma, umbilical cord infection, peritonitis, etc. 1. Trauma: When there is trauma in the periumbilical area and it is not treated in time, the wound is touched with water or touched, resulting in bacterial infection and inflammation, which will lead to the symptom of periumbilical abscess. 2. Umbilical cord infection: the skin around the umbilicus is thin, the depression is deeper and in the form of folds, when the local environment is too moist or easy to stagnate dirt, it will cause inflammation, and if it is not treated in time, it will make the bacterial growth in large quantities, and the condition will aggravate, and the symptom of periumbilical abscess will appear. 3. Peritonitis: If you suffer from acute navel inflammation symptoms, when the inflammatory factor spreads and invades the abdominal cavity organs to cause abdominal inflammation symptoms, it will be manifested as periumbilical abscess, pain, odor and other phenomena. Causes of perianal abscess more causes, should go to the hospital in time for relevant examinations, clear causes, early targeted treatment.