Lung cancer is the most common malignant disease in men and the third most common malignant disease in women. Lung cancer is the most malign among all cancers. The patients, in addition to other symptoms, feel the pain. The pain is subjective feeling composed of biological and social dimension being tracked by different methods in modern medicine. In practice, the simplest and the most commonly used method is Visual Analog Scale. Depending on individual characteristics of pain perception, the approach to specific analgesic characteristic is different. The goal is to accomplish multimodal balanced analgesia aiming (in addition to pain suppression) to improve the quality of patient's life. Chronic pain, due to its characteristics, requires continuous treatment based on the "Three-Level Scale" model recommended by the World Health Organization. The "Three-Level Scale" model requires analgesic treatment on three levels i.e.; three steps depending on the intensity of pain. The research is performed in order to determine the potential existence of influence of social-demographic characteristics on pain perception among the patients having non-small cell lung cancer. To be more specific, the research questioned whether the perception of pain, stage of disease and analgesic treatment are influenced by the patient’s gender, age and place of residence (urban and rural areas). This research showed that the subjective pain perception is influenced by the age and place of residence. Basically, younger population with residence in urban area felt pain more intensively than older patients and those in rural area. The pain was statistically connected with the relative change of pain after the treatment.