The flow of white stuff from the navel may be caused by the metabolism of umbilical oil, umbilical infection, umbilical infection and other reasons. 1. Umbilical oil metabolism: the umbilicus and other skin parts of the body will be the same because of the metabolism and produce grease and aging cells, if long-term attention to hygiene, may lead to the presence of these substances mixed with perspiration in the umbilicus, which led to the umbilicus at the white secretion. 2. Umbilical cord infection: patients with umbilical cord infection will also cause patients to appear in the umbilicus white discharge, while the skin around the umbilicus will appear red, swollen, fever, pain and a series of symptoms. 3. Umbilical cord infection: Umbilical cord infection may also cause white discharge from the umbilicus, this disease is most common in newborns, will cause the root of the umbilical cord red, umbilical fossa exudate. As the disease progresses it can cause redness and swelling of the skin around the lesion and purulent discharge from the umbilical fossa. When there is a white discharge in the navel for a long time, you should go to the hospital for examination and treatment.