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 covered by jewelry as seen when the fringe from her top was not covering it. In 1969, Mariette Hartley was not allowed to show her belly button in "" (1969), the penultimate episode of Gene Roddenberry's "Star Trek". Gene had Mariette expose not one but two belly buttons in the sci-fi film "Genesis II" (1973). In "The Sonny & Cher Comedy Hour" (1971–74), network censors feared Cher's navel exposure would become a cause célèbre at CBS. Cher once commented, "There were so many things that were censored—ideas and words. All I know is I got in trouble for showing my