Causes belly button odor, there is discharge, this situation is considered to be caused by navel infection. Causes of the navel mainly include the following aspects: 1, considered in the bath accidentally dirty water and so on into the navel, caused by umbilical cord infection. 2, considered due to the usual not pay attention to the navel, often scratching the navel caused by navel infection and the formation of umbilical cord inflammation, the appearance of the navel smell, there is a secretion. Treatment of navel odor, discharge, need to go to the hospital surgery, local disinfection, with hydrogen peroxide and saline rinse, with iodophor disinfection, sterile gauze bandage, regular every three days or so to change the medicine, to observe the changes. Need to take antibacterial drugs, including cephalosporin antibiotics, etc., need to pay attention to, during the taking of cephalosporin antibacterial drugs can not drink alcohol, to avoid disulfiram-like reaction. It is necessary to pay attention to a light diet, can not eat spicy and stimulating food, and so on.