The gastric band surgery is permanent as long as the band is in the body. However, the bands are removed after a period to avoid any big infection or serious harm. At this point, if the patient does not opt for another band, the weight gain may begin.
It is important to know that weight gain will happen if the patient is not used to exercise and a good diet. However, if they eat with care and exercise, the chances for the same level of obesity are not there.