Infants begin to develop fat cells (also called "Adipose Tissue" ) during the third trimester of pregnancy. As a young child grows, fat cells divide and multiply in the body much the same as red and white blood cells do. However, when the body no longer needs red and white blood cells, they dissolve and leave the body through the skin, urine, and bowel. Not so with fat cells. When the fat cell is full, it goes through a process called mitosis, divides in half and becomes two. When both of those two cells become full of fat, they, too, divide. It goes on and on and on. Unlike red and white blood cells, fat cells do not have the capability of dissolving and leaving the body. Once fat cells develop in the body, they remain there for life. (Once the fat is burned from the cell they become miscropic in size, but remain forever.) Some people have these cells surgically removed by a process called "Liposuction" after they have lost a tremendous amount of weight from being mildly, moderately, or severly obese.   All types of surgery comes with risks.  Talk with your health care provider before any procedures are performed and abide by your doctor's advice.