Navel Navel The navel (clinically known as the umbilicus, colloquially known as the belly button, or tummy button) is a protruding, flat, or hollowed area on the abdomen at the attachment site of the umbilical cord. All placental mammals have a navel. The umbilicus is used to visually separate the abdomen into quadrants. The umbilicus is a prominent scar on the abdomen, with its position being relatively consistent among humans. The skin around the waist at the level of the umbilicus is supplied by the tenth thoracic spinal nerve (T10 dermatome). The umbilicus itself typically lies at a vertical level corresponding
Navel fetishism co-exists with stomach fetishism or alvinolagnia. Navel fetishism may co-exist with sadomasochism since some navel fetishists prefer to perform or receive navel torture. Some prefer to engage in physical intercourse, which is commonly linked to weight-related stomach fetishes like BBW, feederism, and belly expansion. During the late nineties, there was a small but thriving online group of belly button fetish sites. These sites were maintained by individuals and usually hosted on third-party forum sites like ProBoards or InsideTheWeb. Each forum catered to a unique variation on the fetish, but were mostly the same in that they had individual boards for