Navel changes to diet and exercise, unexpected change in shape may be the result of ascites. In addition to change in shape being a possible side effect from ascites and umbilical hernias, the navel can be involved in umbilical sinus or fistula, which in rare cases can lead to menstrual or fecal discharge from the navel. Menstrual discharge from the umbilicus is a rare disorder associated with umbilical endometriosis. To minimize scarring, the navel is a recommended site of incision for various surgeries, including transgastric appendicectomy, gall bladder surgery, and the umbilicoplasty procedure itself. Abdominal thrusts is a first aid method
Umbilicoplasty of dramatic weight loss or pregnancy, which can change the shape of a belly button. Some may have experienced weight gain, weight loss, or pregnancy, causing changes to the shape of the navel. Cosmetic surgeons concede that women between 35–45 years of age opting for tummy-tucks and liposuctions immediately following childbirth constitute nearly 25% of their practice. Umbilicoplasty Umbilicoplasty, sometimes referred to as "belly button surgery", is a plastic surgery procedure to modify the appearance of one's navel (or "belly button"). It may be performed as part of a tummy tuck or lower body lift operation, or it may be