Abstract:Pain is the most prominent symptom of osteoarthritis. Pain sensation is a complex and multifactorial physiological phenomenon. This review mainly summarizes the related risk factors that affect pain. Pain is not only related to joint structure damage, genetic, environmental (obesity), psychological and neurological factors have an important role. Each factor can act alone or be combined with other factors to create complex pain, which may partly explain why current treatments are ineffective. Determining the risk factors of osteoarthritis pain is helpful to accurately identify the pain phenotype and provide the possibility of individualized intervention for patients with osteoarthritis pain.