Joint injections have emerged as a crucial aspect of a radiologist’s role, regularly employed for both diagnostic and therapeutic purposes. Ultrasound guidance is an invaluable tool in this regard, due to its accessibility, low cost, and absence of radiation. Pain relief through the use of corticosteroids, local anesthetics, or viscosupplements, joint aspiration in cases of suspected infection, and contrast injection for arthrography are all common indications for these procedures. In this article, we aim to provide guidance for common joint procedures (as well as one nonjoint but frequently performed procedure) while also revealing some valuable trade secrets and tips.