she had no other problems previous doses except with 1 previous dose she "felt bad, felt like you had the flue for a day, and tired for one day after infection; she had no other problems previous doses except with 1 previous dose she "felt bad, felt like you had the flue for a day, and tired for one day after infection; It is sunken in, the area of the upper arm is sunken in, and it somewhat painful, slightly painful; she had no other problems previous doses except with 1 previous dose she "felt bad, felt like you had the flue for a day, and tired for one day after infection; she received her 6th Moderna vaccine 07Jul2023, and didn't notice until Sunday, 16Jul2023, that she has muscular atrophy at the injection site. It is sunken in, the area of the upper arm is sunken in, and it somewhat painful, slightly painful; This spontaneous case was reported by a patient and describes the occurrence of INJECTION SITE MUSCLE ATROPHY (she received her 6th Moderna vaccine 07Jul2023, and didn't notice until Sunday, 16Jul2023, that she has muscular atrophy at the injection site. It is sunken in, the area of the upper arm is sunken in, and it somewhat painful, slightly painful), INFECTION (she had no other problems previous doses except with 1 previous dose she "felt bad, felt like you had the flue for a day, and tired for one day after infection), FEELING ABNORMAL (she had no other problems previous doses except with 1 previous dose she "felt bad, felt like you had the flue for a day, and tired for one day after infection), PAIN IN EXTREMITY (It is sunken in, the area of the upper arm is sunken in, and it somewhat painful, slightly painful) and FATIGUE (she had no other problems previous doses except with 1 previous dose she "felt bad, felt like you had the flue for a day, and tired for one day after infection) in a 75-year-old female patient who received mRNA-1273 BIVALENT .222 (MODERNA COVID-19 VACCINE, BIVALENT (ORIGINAL AND OMICRON BA.4/BA.5)) (batch nos. AS7184B and AS7165B) for COVID-19 prophylaxis.     Previously administered products included for COVID-19 prophylaxis: Moderna COVID-19 vaccine (Dose 1, Lot number-004MZ0A) on 07-Feb-2021, Moderna COVID-19 vaccine (Dose 2, Lot number-010AZ1A) on 07-Mar-2021, Moderna COVID-19 vaccine (Dose 3- LOT: 939903 or 4) on 31-Oct-2021, Moderna COVID-19 vaccine (Dose 4 and Lot number-004M21A) on 28-Apr-2022. Past adverse reactions to the above products included No adverse event with Moderna COVID-19 vaccine, Moderna COVID-19 vaccine, Moderna COVID-19 vaccine and Moderna COVID-19 vaccine.   On 26-Sep-2022, the patient received fifth dose of mRNA-1273 BIVALENT .222 (MODERNA COVID-19 VACCINE, BIVALENT (ORIGINAL AND OMICRON BA.4/BA.5)) (unknown route) 1 dosage form. On 07-Jul-2023, received sixth dose of mRNA-1273 BIVALENT .222 (MODERNA COVID-19 VACCINE, BIVALENT (ORIGINAL AND OMICRON BA.4/BA.5)) (unknown route) dosage was changed to 1 dosage form. On 16-Jul-2023, the patient experienced INJECTION SITE MUSCLE ATROPHY (she received her 6th Moderna vaccine 07Jul2023, and didn't notice until Sunday, 16Jul2023, that she has muscular atrophy at the injection site. It is sunken in, the area of the upper arm is sunken in, and it somewhat painful, slightly painful). On an unknown date, the patient experienced INFECTION (she had no other problems previous doses except with 1 previous dose she "felt bad, felt like you had the flue for a day, and tired for one day after infection), FEELING ABNORMAL (she had no other problems previous doses except with 1 previous dose she "felt bad, felt like you had the flue for a day, and tired for one day after infection), PAIN IN EXTREMITY (It is sunken in, the area of the upper arm is sunken in, and it somewhat painful, slightly painful) and FATIGUE (she had no other problems previous doses except with 1 previous dose she "felt bad, felt like you had the flue for a day, and tired for one day after infection). At the time of the report, INJECTION SITE MUSCLE ATROPHY (she received her 6th Moderna vaccine 07Jul2023, and didn't notice until Sunday, 16Jul2023, that she has muscular atrophy at the injection site. It is sunken in, the area of the upper arm is sunken in, and it somewhat painful, slightly painful), INFECTION (she had no other problems previous doses except with 1 previous dose she "felt bad, felt like you had the flue for a day, and tired for one day after infection), FEELING ABNORMAL (she had no other problems previous doses except with 1 previous dose she "felt bad, felt like you had the flue for a day, and tired for one day after infection), PAIN IN EXTREMITY (It is sunken in, the area of the upper arm is sunken in, and it somewhat painful, slightly painful) and FATIGUE (she had no other problems previous doses except with 1 previous dose she "felt bad, felt like you had the flue for a day, and tired for one day after infection) outcome was unknown.        For mRNA-1273 BIVALENT .222 (MODERNA COVID-19 VACCINE, BIVALENT (ORIGINAL AND OMICRON BA.4/BA.5)) (Unknown), the reporter did not provide any causality assessments.   Patient did not received any other vaccines in the 4 weeks prior to COVID-19 vaccine. Concomitant medication details not reported by the reporter. Treatment details was not reported by the reporter.