All G-tubes have some degree of leakage of stomach fluid around the tube onto the skin. Some leak more than others but leakage is considered a common G-tube complication, and most individuals will experience this complication at some point in time.
Usually, the leakage is minimal and easily manageable, but if severe, can cause significant irritation to the surrounding skin. Leakage may be a sign of another mechanical problem with the G tube, such as not enough water in the ballon, an opening that has become too big, or a tube that does not fit.