Dry needling is a non-invasive therapy used by physical therapists to relieve pain and restore muscle function. A very fine, sterile needle is used to puncture a trigger point, a tight, knotted spot in a muscle, to release it and stimulate the tissue’s natural healing process.
How likely is nerve damage?
When dry needling is performed correctly and sterilely by a trained therapist following proper technique, the risk of nerve damage is very low. What you’re far more likely to experience is mild soreness or minor bruising at the needle site, both of which typically resolve quickly on their own.
What does the treatment actually feel like?
Your therapist inserts a hair-thin needle directly into a trigger point and may move it slightly to elicit a “local twitch response,” a brief, involuntary muscle spasm. It can take a session or two before you notice the full benefit, but many patients find real relief, especially when dry needling is combined with other treatments like exercise, stretching, or manual therapy.
When a trigger point is sore, the tissue around it becomes more acidic and the local nerves more sensitive. Needling the point helps restore normal blood flow, flushing out that irritation and easing the tension.
When to speak up
If you notice numbness, weakness, ongoing pain, or a temperature change at or near the treatment site after a session, let your therapist know. These symptoms are uncommon, but worth mentioning so they can be evaluated properly.