This is the most common question asked about acupuncture because many people associate needles with pain. Acupuncture needles are about the thickness of a dog’s whisker, so they are virtually painless when inserted. After insertion, the practitioner will bring the needle to the appropriate depth. You will then usually feel a very unique sensation that can vary from tingling, to heaviness, to warmth, or nothing at all. Each person’s experience is different. Should you experience any discomfort, inform the practitioner, and they will adjust the needles accordingly. All needles are sterilized and disposable.