Fracture of the humerus neck is an injury commonly encountered by physiotherapists in their workplace. This paper defines what a humerus neck fracture is, the major fracture categories it belongs to, the different types of fractures that exist, the possible causes and the most common mechanisms that lead to it, as well as the risk factors associated with this fracture. Humerus neck fractures are classified into multiple categories based on the degree of angulation, the number of fracture lines, and the number of displaced fragments, using the Neer classification, which is commonly used to determine the severity of the injury. The specific clinical presentation related to a fracture in the humerus neck region is highlighted, emphasizing the importance of recognizing the symptoms. The basic and additional diagnostic methods used to confirm the fracture are mentioned, along with the advantages and disadvantages of each. All elements of conservative and surgical treatment are explained, including the various approaches for each. The importance of a physiotherapy approach and the comprehensive role of physiotherapists in terms of assessment and intervention are mentioned. All the steps involved in a physiotherapy assessment from amnesis to subjective and objective assessment, specific clinical tests, and quality of life assessment are explained. The purpose of each part of the physiotherapy assessment is described in detail. Physiotherapeutic intervention is defined as a key aspect of effective treatment, and it is described through the application of physical modalities, therapeutic exercises, and patient education for treatment purposes. Various exercises are listed based on the time elapsed since the operation, as well as how these exercises are adequately conducted. The importance of patient education is emphasized. The paper is supported by photographs, latin terms, and tables to enhance understanding of the content.