For breast decrease, there is never any discomfort.

For breast increase, we occasionally get a report that a woman experienced mild discomfort during part of the growth process, similar to what she experienced during her original breast growth stage. However, this is rare, and the discomfort is always reported as being significantly less than it was originally.

This happens because the body must put the breast tissue back into a state of growth, and for the breast tissue, that occasionally makes it unusually sensitive. Again, that is rare for users of this program to experience, even if their original growth period was significantly uncomfortable.