关键词: 肌疾病, 肿瘤, 肌肉减少症, 影响因素, 综述

Abstract: Sarcopenia is a complicated clinical syndrome characterized by the loss of skeletal muscle mass and dysfunction.With the higher morbidity and mortality of cancer around the world，the occurrence and development of cancer-related sarcopenia are related to many factors.Its pathogenesis is complicated，and there is no effective standard treatment of cancer-related sarcopenia now.At present，the study of cancer-related sarcopenia is still in the early stage around the world.This paper reviewed the influencing factors，such as age，physical activity，nutrition status，and cancer therapy，to strengthen the assessment and screening of cancer-related sarcopenia，and provide objective basis for its prevention strategies in the future.?

Key words: Muscular diseases, Neoplasms, Sarcopenia, Root cause analysis, Review