Pain is generally perceived as a sensory, emotional and cognitive aggression by the patient who suffers from it and as the enemy that must be defeated by the physician. It may become chronic, and the passage from the acute phase to the chronic phase cannot be explained in a single way. Indeed, multiple factors come into play: biological, psychological and socio-professional. The patient's quality of life then deteriorates and places him/her in a vicious cycle of pain. The assessment of the different components of pain (sensory, emotional, cognitive and behavioural) and its maintenance factors allow for the implementation of therapeutic strategies, both physical and psychological, adapted to every patient. Due to the complexity of chronic pain management, a multidisciplinary strategy is being developed, with a global approach according to the biopsychosocial perspective, including non-pharmacological approaches, with the objective of allowing the patient to be autonomous in the management of his/her symptoms.