Acupuncture is extremely safe when performed by a trained acupuncturist. Research has shown that acupuncture is 99.8% free from even minor adverse events. There is a risk of minor bruising near insertion sites but this happens infrequently.
High quality, disposable needles are always used.
Research has also shown that acupuncture is outstandingly safe for pregnant women and children. Children under 6 respond well to acupressure and other non-needle techniques, so they are not needled.
There are some rare situations where acupuncture is contraindicated. These situations can occur as the result of cancer treatments.
If you are undergoing cancer treatments, consult your doctor to make sure these situations do not apply to you.