Why is the belly easily fat? Because the body fat accumulation in the abdomen area is relatively large, from the outside the appearance of the abdomen is fuller, the upper abdominal angle > 90 °, its front wall can be higher than the plane of the rib cage and the pubic symphysis, presenting the full state of the abdomen. When lying flat, it is obviously higher than the plane of the rib margin and pubic symphysis and protrudes outward, which is called abdominal bulge. Obesity refers to a state of excessive accumulation of fat in the body, so it can be seen in the appearance of the super force type of body. General obesity has primary obesity and secondary obesity two kinds, primary obesity and genetic and lifestyle related, so establish a good lifestyle, is can maintain a healthy body type of measures.