Have you ever before had your finger in your tummy switch and also it did not smell so pleasant? Several variables can be a contributing cause to the undesirable odor of a stubborn belly button. Most of the times the odor is simply a tip that a person requires to give the area more attention in hygiene. According to the health care web site Clinical Prize, sweat, soap and other transferred compounds can foster microbial development. If there is an undesirable smell and pus like compound eliminating from the stubborn belly switch, you may have a microbial infection.