The causes of navel redness, swelling and pain are umbilical infection, umbilical urethral cyst infection, etc., as follows: 1, umbilical infection: umbilical infection has many triggers, such as violent picking and rubbing the umbilicus, or long-term non-cleaning, etc., which need to go to the surgery as soon as possible, or the emergency department for disposal, if there is no localized exudate, you can rub iodine povidone or Bactroban etc., and carry out regular medication changes. If there is obvious local exudation, it is necessary to carry out anesthesia under the state of debridement, to remove the infected necrotic tissue, and in the later stage, it is also necessary to carry out regular dressing changes, and sometimes it is also necessary to take oral antibiotics or infusion for treatment; 2, umbilical urethral cysts infections: this is a congenital disease, caused by the umbilical cord and bladder ducts between the bladder is not closed, it is necessary to go to the hospital to check the ultrasound, CT or imaging to make it clear that if the disease, it is necessary to carry out surgical treatment as soon as possible. This disease needs to be treated with surgery as early as possible to prevent malignant changes.