Most people feel little when the needle goes in, then a brief muscle twitch or deep, cramp-like ache when it reaches a tight spot. That lasts a few seconds. The most common side effect is muscle soreness for about a day afterward.
The needles are very thin, solid and sterile, and nothing is injected. Dry needling is always optional, and you can ask your practitioner to stop at any time.
What it feels like
- Going in: often nothing, or a small pinch
- At the trigger point: a quick twitch, a dull ache or a cramping feeling
- Afterward: the muscle can feel heavy or tired, like after a hard workout
Common side effects
- Muscle soreness for 24 to 48 hours
- A small bruise or a drop of blood at a needle site
- Feeling tired or light-headed for a short time
Less common risks
Fainting, a lasting increase in pain and infection are uncommon. Serious complications, such as a needle affecting a lung when treating around the chest or upper back, are rare. Your practitioner will explain the risks that apply to the area being treated and ask for your consent first.
What helps afterward
- Gentle movement and light stretching
- Heat on the area if it feels good
- Normal daily activity, holding off on very hard training until soreness eases
Tell your practitioner first if you
- Are pregnant
- Take blood thinners or have a bleeding disorder
- Have a weakened immune system, diabetes or a skin infection in the area
- Have a strong fear of needles or have fainted with needles before
- Have a pacemaker, if electrical stimulation of the needles is being considered
When to get medical help
Go to emergency for shortness of breath or chest pain after needling around the chest, shoulders or upper back. See a doctor for spreading redness, warmth or fever.
Wondering how this differs from acupuncture? Read is dry needling the same as acupuncture? More detail is on the contemporary medical acupuncture and dry needling page.
Unsure whether needling is right for you?