# mjacu.com > Generated by All in One SEO v5.0.4, this is an llms.txt file, used by LLMs to index the site. ## Sitemaps - [XML Sitemap](https://mjacu.com/sitemap.xml): Contains all public & indexable URLs for this website. ## Pages - [Home](https://mjacu.com/): Q: Does it hurt? What is the needle size? A: Acupuncture needles are extremely thin—about the width of a human hair (0.20–0.25mm). Unlike thick, hollow hypodermic needles used for injections, these are solid and flexible. You may feel a tiny pinch or a dull, heavy sensation (called De Qi), which is a sign the treatment is working.