The McGill Pain Questionnaire, also known as McGill Pain Index, is a scale of rating pain developed at McGill University by Melzack and Torgerson in 1971.
[1] It is a self-report questionnaire that allows individuals to give their doctor a good description of the quality and intensity of pain that they are experiencing.
The users are presented with a list of 78 words in 20 sections that are related to pain.
[2] The users mark the words that best describe their pain (multiple markings are allowed).
[1] According to the European Medicines Agency it is the most frequently used measurement tool for multidimensional pain assessment in chronic pain.