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Cultural views on the navel regarded as immodest or indecent was withdrawn; and with it there was an increasing level of body exposure over time. The exposure of the navel ceased to be controversial in the context of a general increase in nudity. During the late 1980s, Disney's heroines began exposing more skin as well. In the 1989 animated film "The Little Mermaid", the animated lead protagonist, Ariel, flashed her navel while wearing only fins and seashells, a first in Disney's history. In 1951, the United States Code of Practices for Television Broadcasters came into force, which, besides other things, prohibited female navel exposure on