A normal person’s navel also smells because the navel is connected to the abdominal cavity. In itself, the navel is a concave, hidden, shadowy, and easily waterlogged place that tends to harbor dirt and grime. The temperature in this area is more favorable and at the same time suitable for the propagation of bacteria. A normal person’s navel will secrete a small amount of secretion, and this small amount of secretion may provide some protection. If there is too much secretion, it tends to accumulate in the umbilicus, which can lead to bacterial growth and infection. Severe infections may contain anaerobic bacteria and produce a foul odor. If there is too much secretion, pus flow, you should go to the hospital to confirm whether the patient has the possibility of umbilical cord infection, navel area stink is caused by bacterial reproduction, some anaerobic bacteria may produce some odor. At the same time, if you clean the navel, can be completed after the bath, with a wet towel or cotton balls, cotton swabs gently wipe, to avoid excessive force damage to the skin mucosa. If you damage the skin mucosa or use too much force, it will lead to gastrointestinal discomfort, because the navel and internal organs are connected, and it may also induce umbilical infection.