Absorbable sutures disintegrate in the body and can be used internally. Absorbable sutures include chromic/plain gut, Monofyl/Monocryl, PDO/PDS, and PGA/Vicryl.
Non-absorbable sutures must be manually removed. Non-absorbable sutures include nylon, PGA/Vicryl, silk, polyester, and stainless steel.
Monofilament sutures include polypropylene, gut, nylon, stainless steel, etc. These provide a better passage through the tissue resulting in a lower tissue reaction. Multifilament sutures include PGA, polyglactin, silk, and polyester. Multifilament sutures are braided and may be coated with silicone, wax, etc. They provide better knot security over monofilament.