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
Cultural views on the navel an advertisement in newspapers and magazines throughout America. It featured a bikini-clad blonde model exposing her bellybutton posing on a rock above the caption "What to show your wife in Scandinavia". The image that appeared in most publications had the belly button removed. The first exposure of a navel in a TV series occurred in 1961 on the "Dr. Kildare" series. Dawn Wells and Tina Louise were not allowed to expose their navels in "Gilligan's Island" (1964–67). Wells was required to wear high-waisted shorts that covered her navel. Wells stated in an interview, "Oh my goodness, I designed the shorts.