A deeper navel is a normal phenomenon, which may be caused by the trimming of the umbilical cord or by excessive obesity. The navel is the trace left by the umbilical cord after the fetus leaves the mother’s body, if the umbilical cord is left longer at birth, the navel will be flatter, on the contrary, if the umbilical cord is left shorter, the navel may be deeper. In addition, the depth of the navel and obesity have a certain relationship. Generally speaking, the body thin crowd navel will be relatively shallow, and more obese people, due to the abdominal wall fat is relatively thick, may also cause a deeper navel, usually the more fat navel will be sunk deeper. Deeper navel is a normal phenomenon, usually does not affect the human body’s health, but for the obese people, it is recommended that appropriate weight loss, such as increased aerobic exercise and resistance exercise.