Ultrasound Guided Injections have become fairly common over the past few years, and sometimes preferred over blind injections for certain joints and regions because they guide the needle more accurately to provide more precise pain relief. Traditionally, doctors would have to feel the area to find what they perceive to be the best spot for the injection. With the ultrasound guided injections, there is less guesswork, because they can actually see inside the joint and the precise area where the needle is going. Because the injection is given with a smaller and thinner needle, anesthesia is usually not needed. The injections are given for a variety of reasons, including pain relief, and to treat many conditions such as pain from tendonitis or arthritis.