There are yellow secretions in the navel also particularly smelly, may be due to poor hygiene habits, or consider the umbilical cord infection and other diseases. 1. poor hygiene habits: if daily strenuous exercise, but also not timely bathing, cleaning the navel area, may lead to sweat, foreign matter and other substances accumulate, there is more dirt in the navel, yellow discharge can occur along with the odor of the situation. This kind of situation, when timely cleaning navel area, can be relieved. Daily, need to bathe diligently, keep the navel clean and clean. 2. Umbilicitis: Umbilicitis may be caused by skin damage, contaminants and other factors. Especially obese patients, the umbilical nest is relatively deeper than ordinary people, easy to induce umbilical infection. Umbilical cord inflammation symptoms for the surrounding skin redness and swelling, plasma pus secretion, accompanied by odor, diarrhea, vomiting, fever, etc., manifested in the navel yellow secretion is also particularly smelly. There are many reasons for the yellow discharge from the navel, and it is recommended that the patient go to a regular hospital to identify the cause of the disease to be treated accordingly.