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
Navel piercing by TummyToys navel rings. Vogue fashion published an article in 2015 about the circular captive bead belly rings and TummyToys snap lock clasps becoming the current trend for navel piercings. Most kinds of ring or bar jewelry can be worn in a navel piercing. Navels are most often pierced with a 14g curved barbell, which is recommended to be worn until the piercing has fully healed, the healing time is typically anywhere between 6 - 12 months. A wide variety of decorative jewelry is available for navels - simple curved barbells, captives, TummyToys belly huggies, flexible PTFE and fancy long