Some researchers say SIRVA is rare but underreported. These fluid-filled sacs cushion bones, tendons, and muscles. These thick cords connect muscles to bones. These tough bands of tissue connect two bones in a joint. Research suggests that this brings on inflammation, and it could injure body parts inside your shoulder like: The symptoms of SIRVA stem from the shot going into the wrong part of your upper arm or due to trauma from the needle. To prevent SIRVA and give these shots properly, many medical workers are trained to look or feel for specific physical “landmarks” on the arm that guide them to the deltoid muscle. The right place to give this type of shot is in the middle, thickest part of the deltoid, a large triangular muscle that goes from your upper arm bone to your collarbone. That could accidentally damage tissues or structures in the shoulder. SIRVA can happen if a medical worker gives you a vaccine shot too high up on your upper arm. Research also suggests that over-the-counter pain meds don’t help the symptoms get better. The symptoms usually show up within 48 hours after you get a vaccine shot in your upper arm. The main signs of SIRVA are serious shoulder pain and less range of motion, meaning trouble with moving your shoulder normally. That way, you can get help if you need it. That stands for shoulder injury related to vaccine administration.Įven though you shouldn’t let this small risk stop you from getting vaccinated, it’s a good idea to learn about SIRVA symptoms, SIRVA treatment, and more. But in rare cases, people get an injury known as SIRVA. After you get a vaccine shot in your upper arm to protect yourself against the flu, COVID-19, or another disease, there’s a chance you’ll feel some soreness where you got jabbed.