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 issue cover. Models such as Gisele Bündchen frequently flash their midriffs. In 1994, Art Cooper, editor-in-chief of "GQ" magazine said that his big seller in 1994 was the February issue with Geena Davis on the cover, on which she wore an Armani suit opened at the hips to reveal her navel, It sold about 400,000 copies. He stated, "Part of the success is the navel factor. I think the belly button is really an erogenous zone." Navel piercing and navel tattoos has become more common among young women. The trend of piercing or tattooing the navel became popular in the