Pain is a frequent symptom that is present in several areas of the medical field. Innumerous conditions show this unpleasant complaint, which pathophysiological particularities need to be understood in order to achieve an accurate diagnosis. Besides, although there are diagnostic criteria and classifications essential to the clinical practice, there is a role of individual parameters, such as previous pain experiences, personality, pain history, comorbidities, predisposing factors, and associated diseases [1,2]. This unique combination of factors makes pain a singular experience, a reason why patients’ assessment by doctors depends on training, study, and dedication.