Research & evidence
How safe is dry needling? Adverse events in the data
Mild events — soreness, bruising, bleeding — are common; serious events such as pneumothorax are rare and tied to specific anatomical regions.
Published:
What the surveillance data show
Prospective and retrospective series report mild adverse events in a substantial minority of treatments: post-needling soreness, bruising, minor bleeding, brief autonomic symptoms such as light-headedness. These resolve within days.
Serious adverse events are rare in the published record, with pneumothorax the one most consistently discussed because of needling over the thorax and lower neck.
Region-specific precautions
Safety papers emphasise needle direction and depth over the thoracic wall, the supraclavicular fossa and the axilla; awareness of vascular and neural structures in the neck; and adjusted decisions for anticoagulated patients, pregnancy, local infection and lymphoedema.
Every muscle protocol on this site carries the anatomical caution relevant to that muscle for exactly this reason.
What patients should be told
Informed consent should mention likely soreness for one to two days, possible bruising, and the small risk of a serious event with thoracic or cervical needling, plus what symptoms warrant urgent contact — breathlessness, chest pain, spreading redness or fever.
Self-needling is not an option. Manual release, heat and graded movement are the self-care equivalents described in the treatment articles here.
Muscles covered
Studies cited
Every claim in this article traces back to one of the sources below.
- Boyce 2020 — Adverse events associated with therapeutic dry needling. Int J Sports Phys Ther 2020;15(1):103-13 ↗
- Halle 2016 — Pertinent dry needling considerations for minimizing adverse effects. Int J Sports Phys Ther 2016;11(5):651-62 ↗
- Espejo-Antúnez 2017 — Dry needling in the management of myofascial trigger points: a systematic review of randomized controlled trials. Complement Ther Med 2017;33:46-57 ↗
- Kalichman 2010 — Dry needling in the management of musculoskeletal pain. J Am Board Fam Med 2010;23(5):640-6 ↗

