Trigger point DRY NEEDLING (TDN) is a treatment for muscular tightness and spasms which commonly follow injuries and often accompany the degenerative processes. This muscular tightness and spasm will cause compression and irritation of the nerves exiting the spine. When the nerves are irritated, they cause a protective spasm or trigger point of all of the muscles to which they are connected. This may cause peripheral diagnoses, such as carpel tunnel, tendonitis, osteoarthritis, decreased mobility, and chronic pain. Small, thin needles are inserted in the muscles at the trigger points causing the pain referral. The muscles then contract and release, improving flexibility of the muscle and decreasing pain and other symptoms.