Frozen shoulder, also known as adhensive capsultities, is a disease that progresses in three stages. 1) the first stage is inflammation of the shoulder. 2) as the disease proceeds, an restriction in movement increases (also known as "freezing"). 3) with appropriate therapy, the inflammation can be reduced and mobility improved ("beginning of defrosting").Those affected often suffer from permanent pain, which also massively disturbs their night's sleep. This leads to a positioning on one side, which puts additional strain on the shoulder. In addition, patients hardly move their arm at all due to the severe pain, so that the capsule shrinks increasingly and a stiff shoulder sets in.Imaging procedures such as sonography, X-rays and magnetic resonance imaging (MRI) are therefore necessary for clarification.Initially, early treatment with anti-inflammatory agents and often also with cortisone (in form of a syringe or medication) is necessary. Only when the acute pain symptoms have subsided, a physiotherapeutic exercise treatment is usefully.If necessary, a surgical intervention can also help to treat the frozen shoulder. In this case removal of inflamed tissue and lysis of adhesions will be performed arthroscopically. Each anaesthesia is followed by an anaesthesia mobilization. Treatment will be continued by intensive physiotherapy.