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
The Word for World Is Forest Athsheans: one of the elders of the Athsheans says to Selver "You've done what you had to do, and it was not right." "The Word for World is Forest" also challenges the idea of colonialism; the Terran colonists are depicted as being blind to the culture of the Athsheans, and convinced that they represent a higher form of civilization. Le Guin also challenges the metaphorical preference in Western cultures for pure light, in contrast to deeper and more complex shadows. Throughout the novel Le Guin draws a contrast between the Athshean way of integrating with the ecology of the planet,