You may have heard of someone with a frozen shoulder but do you know what it is or what can be done about it? Firstly its medical name is adhesive capsulitis and it really refers to a tightening and thickening within the joint capsule of the shoulder. It is typically associated with an increase in pain, increased stiffness and a loss of range of movement within the shoulder.  The onset of pain can be gradual or appear more sudden without trauma or injury to the area.