Young Brunette Girl With A Genital Piercing Posing On Stairs In Shoes

Body piercing jewellery is measured by thickness and diameter/length. Most countries use millimeters. In the USA, the Brown & Sharpe AWG gauging system is used, which assigns lower numbers to thicker middles. 00 gauge is 9.246 millimetres (0.3640 in), while 20 gauge is 0.813 millimetres (0.0320 in).
• Piercing tools
Permanent body piercings are performed by creating an opening in the body using a sharp object through the area to be pierced. This can either be done by puncturing an opening using a needle (usually a hollow medical needle) or scalpel or by removing tissue, either with a dermal punch or through scalpelling.