IMS is a dry needling technique that is used to diagnose and treat myofascial pain. During IMS, small filament needles can be inserted either at the epicenter of taut, tender muscle bands (trigger points), or near the spine where the nerve root may have become irritated and supersensitive. Inserting needles deep into dysfunctional muscles may cause a reflex release of the muscle tension which helps reduce pressure on the nerve to alleviate pain and dysfunction. IMS relies heavily on a thorough physical examination of the patient by a certified practitioner.