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 The female navel has become the refrigerator man's continental divide. I hate to break it to you, oh future daughters-in-law, but everybody's got a belly button. Your inney- or outey-ness is not the stuff either of revelation or revolution." Exposed midriff is associated with the crop top, often in association with low-rise clothing. Another way that the navel may be exposed is via a deep plunging neckline dress or top that drops below the natural waist line. Low-rise clothing started in the early 1990s, when the British magazine "The Face" featured Kate Moss in low-rise jeans on its March 1993