Trigger point dry needling is a treatment technique that addresses dysfunction of the neuromuscular system. It uses small filament type needles to release tight muscles with the goal of permanently reducing muscle pain and dysfunction. Trigger points develop in the muscle secondary to various stresses, i.e. postural, repetitive motion, psychological, emotional etc and are more likely to develop in tissue that has neurological dysfunction likely caused by compression, disc dysfunction, facet joint dysfunction, vascular compression, metabolic stress, biomechanical stress, postural stress etc.
When muscles develop trigger points, they neurologically remain tight causing local compression of vascular, neurological and joint/biomechanical structures hampering the normal function of that tissue. All tissues distal to the involved nerve will likely be involved. If you adequately release the muscle, the tissues then are allowed to assume normal function with improved neurological conduction and vascularity.