Background: The COVID-19 vaccination is essential for returning the world to normal following the pandemic. On the other hand, untrained staff members and unclear instructions might result in incorrect injection techniques, which can cause problems like shoulder injury linked to vaccination administration (SIRVA), which limits mobility and causes shoulder pain. Proper administration is essential for both patient safety and vaccination efficacy. The purpose of this study was to ascertain the prevalence of shoulder pain in the general population after receiving the COVID-19 immunization. Material & Methods: This observational study was carried out from july 2022 to October 2023 at BPS Govt. Medical College, KhanpurKalan, Sonipat, in the departments of anesthesia, analgesia, and intensive care medicine. The study focused on Shoulder Injury Related to Vaccine Administration (SIRVA) following COVID-19 vaccination and involved 120 patients, both male and female. Using a checklist to collect data, cases assessed by physicians were examined to reduce diagnostic errors as much as possible. Results: Patients (29.2%) with ages 63-72 years received 80% of their immunizations from Pfizer and Moderna. Adhesive capsulitis (44%) and bursitis (36%) were frequent symptoms. It varied; 35.2% of respondents reported symptoms at the outset, and 40.8% within 24 hours. 92% of people reported being in pain. MRI (36.8%) and X-ray (63.2%) were utilized for diagnosis. NSAIDs (24%) and physical therapy (16%) were used as treatments in addition to oral steroids (56%). Conclusions: The importance of correctly administering vaccines to prevent side effects such as SIRVA. To ensure both efficacy and individual well-being, the COVID-19 vaccination campaign needs to be run with clear protocols and staffed by trained professionals.