The belly button is smelly and wet, there are two possible causes: 1, the belly button or around the belly eczema, when you will usually see the skin has small dotted blisters, blisters rupture will flow out of transparent liquid or yellowish liquid, symptoms in addition to wet and smelly, but also accompanied by itching. 2, may be the belly button in the soft tissue infection, commonly because after accidentally picking the belly button The mucous membrane of the skin has small damage, bacteria invade the wound and inflammation of the situation. In addition to the wet and smelly situation, it will also be accompanied by red, swollen, hot and painful symptoms such as flushing of the skin around the belly, increased skin temperature or hardening of the surrounding soft tissues.