Myofascia is a connective tissue in the body (commonly called fascia) that wraps around the body. Fascia is made of collagen and acts to stabilise, enclose and separate muscles and other internal structures. Fascia can be classified into 4 layers: Superficial, deep, visceral and parietal. The different layers have different functions and surround different parts of the body.
Fascia is flexible and is able to resist large forces placed on it, however, fascia becomes important to therapists when it becomes too stiff or too loose, or stops gliding smoothly with other structures and becomes bound down. Commonly, fascia will get tight after some kind of trauma, such as inflammation or surgery