Background: Pain is an unpleasant sensory and emotional experience, which leads us to look for intervention strategies to control it and thus achieve greater well-being with the minimum of adverse effects. Objective: to determine the effectiveness of hypnotherapy as a coadjuvant treatment in the management of pain in post-operated patients of knee arthroscopy at the Naval Hospital of Specialties of Veracruz. Material and Method: Experimental, longitudinal, exploratory and descriptive study performed in post-operated patients of knee arthroscopy during the period from October 1, 2017 to February 28, 2018. The intensity of post-surgical pain was analyzed and compared using the evaluation scale of the pain (analog visual scale, EVA) in group A (hypnotherapy and analgesics) and control group B (only analgesics). Results: the overall score obtained during the intragroup analgesic comparison obtained an initial mean measurement of 6.6 pain points (EVA) in group "A", with a maximum score of 8.0 and a minimum score of 5.0, while in group "B" an average initial value of 6.4 was obtained, with a maximum score of 8.0 and a minimum score of 5.0. We obtained an average of 3.1, SD ± 1.0 against a mean of 4.2 SD ± 0.6 of group "B" with a statistically significant value (p <0.01). Conclusion: it is necessary to carry out research with a larger sample, for the establishment of the efficacy of hypnosis since it has no side effects, nor risks of adverse reactions, reducing the expense in medication associated with conventional medical treatments.
