The quality of life often depends on the health and medical care. However, it may be that medical professionals emphasize its importance to patients to too little, especially in the setting of treatment goals. HRQL How health affects the quality of life is different and subjective. Health-related quality of life has multiple dimensions. Lack of concern physical symptoms (. Eg pain, shortness of breath, nausea, constipation) Emotional well-being (. Eg be happy, have no fear) functional status (eg ability to the activities of the pursue daily life and perform higher-grade functions such as pleasurable activities) quality close interpersonal relationships (eg. as to family members, friends) participation and enjoyment of social activities satisfaction with the medical and financial aspects of the treatment sexuality, body image and intimacy influences Some of the factors that affect the health quality of life (eg. as institutionalization, reduced life expectancy, cognitive impairment, disability, chronic pain, social Iso lation, functional status), may be apparent to medical professionals. It may be that they have to ask others, especially social determinants of health (ie, the social, economic and political circumstances, people lay their lives have experienced, and the systems that were set up to prevent disease and these when they occur to treat). Other important factors are the nature and quality of close relationships, cultural influences, religion, personal values ??and previous experience with the health system. It can be but not necessarily vorhergesagen as circumstances affect the quality of life, and some unpredictable factors can have an impact. In addition, the view can change the quality of life. After a stroke that caused severe disabilities, patients can such. choose as a treatment (eg. as a life-saving operation) to achieve a quality of life that they have considered poor or even unacceptable before the stroke. Assessment boundaries of the assessment The assessment of the patient’s perspective on quality of life can be difficult for the following reasons: Such an assessment is not always adequately taught in the context of medical education or stressed. Quality of life is subjective, so that decision models can not be applied to individual patients. The assessment of the patient’s perspective on quality of life takes time because it requires a thoughtful conversation between patient and health professional. Methods The quality of life is best assessed in a direct conversation with the patient. During the evaluation, the professionals should be careful not to introduce their own bias. The preferences of patients usually can be identified; even patients with mild dementia or cognitive impairment can express their preferences when simple explanations and questions are used. If the preferences of patients are discussed with cognitive impairment, the presence of family members is recommended. Instruments for measuring the health-related quality of life may be useful for the assessment of group trends in research studies, but they are not really useful for clinical assessment of individual patients.