Relevance: Colorectal cancer is a serious health problem that primarily affects the quality of life (QoL) of both the patients and their families. The purpose was to study the problems of QoL of patients with colorectal cancer (CRC) in the world and Kazakhstan. Results: The study examined the pre- and post-treatment QoL of CRC patients depending on age, gender, disease stage, the number of study participants. The analysis of literature sources revealed the predominance of men and people over 50 years among CRC patients. The CRC diagnosis often leads to disorders, mainly physical and functional, and a decrease in performance. Conclusions: The QoL of patients with CRC in several countries remains poor in physical, social, clinical, and financial aspects.

Relevance: Colorectal cancer is a serious health problem that primarily affects the quality of life (QoL) of both the patients and their families.The purpose was to study the problems of QoL of patients with colorectal cancer (CRC) in the world and Kazakhstan.Results: The study examined the pre-and post-treatment QoL of CRC patients depending on age, gender, disease stage, the number of study participants. The analysis of literature sources revealed the predominance of men and people over 50 years among CRC patients. The CRC diagnosis often leads to disorders, mainly physical and functional, and a decrease in performance.Conclusions: The QoL of CRC patients in several countries remains poor in physical, social, clinical, and financial aspects.