A girth adjustable device for physical therapy such as dilation and stretch of body orifices that can repeatedly, gradually increase and decrease a uniform and sustainable pressure against the entire lateral surface area of body orifices. The girth adjustable device comprises at least one controller, a housing, at least one threaded shaft, at least one module, a plurality of shaft members and at least one sheath. The part of the girth adjustable device that has to be inserted into body orifices is the shaft. In a body orifice, the user increases and decreases the girth size of the shaft via the controller.
