The belly button is a scar that forms after the umbilical cord is cut at birth. This common anatomical feature varies, with some having an “innie” (concave) and others an “outie” (protruding) belly button. Variations in navel shape often spark curiosity, particularly about changing an outie to an innie.
Understanding Outie Belly Buttons
An outie belly button develops from how the umbilical cord stump heals after detaching, typically within one to three weeks after birth, and its final appearance, whether inward or outward, results from how the skin and underlying tissues heal. The method of clamping or cutting the umbilical cord does not determine the belly button type. Factors like scar tissue, space between skin and abdominal wall, or a minor umbilical hernia can influence protrusion. An umbilical hernia occurs when a small part of the intestine or abdominal fat pushes through a weak spot in the abdominal muscles near the navel, causing a bulge. This is a common cause of an outie, though not all outies are due to hernias.
Natural Changes in Infants
For infants, an outie belly button can sometimes undergo a natural change, particularly if its protrusion is due to a small umbilical hernia, which most often close on their own as the child grows and abdominal muscles strengthen, typically by age two to five. This natural closure can lead to the outie retracting and becoming an innie. However, this is not guaranteed for all infants with outies; if the outie is solely due to scar tissue, natural change is less likely. Parents should avoid home remedies like taping coins over the navel, as these are ineffective and can cause irritation or infection.
Surgical Solutions for Adults
For adults, surgical procedures offer the most direct solution to change an outie to an innie. Umbilicoplasty is a cosmetic surgery designed to reshape the navel. This procedure involves small incisions around the belly button to remove excess skin or fat, using sutures to reshape the area for a more concave appearance. If an umbilical hernia contributes to the outie, the surgeon can repair it simultaneously by closing the opening in the abdominal wall.
Umbilicoplasty can be performed as a standalone procedure, often under local anesthesia with sedation, allowing for quick recovery. It is also commonly combined with other abdominal surgeries, such as a tummy tuck (abdominoplasty), where the belly button is repositioned and reshaped as part of overall abdominal contouring. While generally safe, potential risks include infection, bleeding, scarring, and asymmetry.
What to Consider
An outie belly button is a normal anatomical variation and typically poses no health concerns. There is generally no medical need to alter its appearance unless it causes discomfort or is associated with a symptomatic umbilical hernia. If considering any change, avoid unproven home remedies, as these can be harmful.
Individuals with concerns about their belly button’s appearance, or if they notice symptoms like pain, discharge, or significant changes in size or color, should consult a medical professional. A pediatrician can assess an infant’s outie, especially if an umbilical hernia or granuloma is suspected. For adults, a general practitioner or a board-certified plastic surgeon can provide guidance on potential causes and discuss surgical options like umbilicoplasty, ensuring a safe, informed decision.