Flat - contour of abdomen where it is straight horizontal line is observed from the costalmargin to
the symphysispubis. This contour is common in thin person
Protuberant - contour of abdomen similar to the rounded abdomen, only grater. This contour is anticipated in pregnancy. It is also seen in the adult with obesity, ascites, and other conditions
Rounded - contour of the abdomen that is sometimes called a convex abdomen. The horizontal line now curves outward, indicating an increase in abdominal fat or a decrease in muscle tone. This contour is considered a normal variation in the toddler and the pregnantfemale.
Scaphoid - contour of abdomen that is sometimes called a convexabdomen.The horizontal line line now curves inward toward the vertebral column, giving the abdomen a sunken appearance. In the adult, this contour is seen in the very thinperson