Scars hinder movement for two reasons: firstly, Scar fibres tend to run at right-angles to muscle fibres, which prevents the muscle from working properly. Secondly, they can cause tissue to stick to itself, rather like clingfilm. This sticking creates new tension and draglines throughout the body. (Try pulling your clothing down at the front and feel what happens at the back.) These stuck areas are known as adhesions and they increase the pressure placed on nerves, blood vessels, muscles, bones and internal organs. Adhesions can affect you in ways which you didn’t anticipate, for instance, a hysterectomy scar disrupting your digestion, changing your posture and causing shoulder pain.