Acupuncture needles are metallic, solid, and hair-thin. People experience acupuncture differently, but most feel no or minimal pain as the needle is inserted. Some people feel energized by treatment, while others feel relaxed. There are four types of needle sensation: pins and needles, anaesthesia, swelling and heaviness. Sometimes gentle movement of the limb being treated can enhance the needle sensations. The stronger the needle sensation, the stronger would be the therapeutic effect. Improper needle placement, movement of the patient, or a defect in the needle can cause soreness and pain during treatment. This is why it is important to seek treatment from a qualified acupuncture practitioner. Posture Plus only employs Hong Kong accredited acupuncturists.