His right thumb has been giving him problems lately/ it seems like he has a joint problem ever since he got the Moderna COVID-19 vaccine/my right thumb (joint) doesn't work properly.; He says that his left elbow has been hurting ever since he received the 2nd booster dose of Moderna on 7OCT2022.; This spontaneous case was reported by a patient and describes the occurrence of MUSCULOSKELETAL DISCOMFORT (His right thumb has been giving him problems lately/ it seems like he has a joint problem ever since he got the Moderna COVID-19 vaccine/my right thumb (joint) doesn't work properly.) and ARTHRALGIA (He says that his left elbow has been hurting ever since he received the 2nd booster dose of Moderna on 7OCT2022.) in a 64-year-old male patient who received mRNA-1273 BIVALENT .222 (MODERNA COVID-19 VACCINE, BIVALENT (ORIGINAL AND OMICRON BA.4/BA.5)) for COVID-19 prophylaxis.     The patient had no prior history of COVID-19 and no relevant medical history.     On 07-Oct-2022, the patient received fourth dose of mRNA-1273 BIVALENT .222 (MODERNA COVID-19 VACCINE, BIVALENT (ORIGINAL AND OMICRON BA.4/BA.5)) (unknown route) 1 dosage form. On 01-Jan-2023, the patient experienced MUSCULOSKELETAL DISCOMFORT (His right thumb has been giving him problems lately/ it seems like he has a joint problem ever since he got the Moderna COVID-19 vaccine/my right thumb (joint) doesn't work properly.) and ARTHRALGIA (He says that his left elbow has been hurting ever since he received the 2nd booster dose of Moderna on 7OCT2022.). At the time of the report, MUSCULOSKELETAL DISCOMFORT (His right thumb has been giving him problems lately/ it seems like he has a joint problem ever since he got the Moderna COVID-19 vaccine/my right thumb (joint) doesn't work properly.) and ARTHRALGIA (He says that his left elbow has been hurting ever since he received the 2nd booster dose of Moderna on 7OCT2022.) had not resolved.        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.   Concomitant medications were not reported.  It was unknown if the patient received any other vaccines in the 4 weeks prior to COVID-19 vaccine.  On 02-Mar-2021, the patient received 1st dose of Moderna COVID-19 vaccine from lot number 012A21A and 2 or 3 weeks after receiving 1st dose, his left elbow had a golf ball sized lump on it. Patient says that he had reported that to Moderna when it happened.  On 30-Mar-2021, the patient received 2nd dose of Moderna COVID-19 vaccine from lot number 018B21A and the patient did not had any issues after 2nd dose.  On 02-Dec-2021, the patient received 3rd dose (1st booster) of Moderna COVID-19 vaccine from lot number 067F21A.  Patient stated that he received the primary series of Moderna COVID-19 vaccine in 2021 and 2 boosters of the Moderna COVID-19 vaccine after that. He says that his left elbow had been hurting ever since he received the 2nd booster dose of Moderna on 07-Oct-2022. His symptoms started approximately 3 to 4 months after receiving the 2nd booster dose. Additionally, patient stated that his right thumb had been giving him problems lately. Also reported that it was clicking, and that joint does not had a smooth fluid motion and stated that it seems like he had a joint problem ever since he got the Moderna COVID-19 vaccine. Patient wanted to know if the symptoms he was experiencing at the time of report were associated with the Moderna vaccines he received. The patient says that he was not here to sue Moderna or create any lawsuits because he knows that will mount up to nothing. He just wanted to get answers for what he was experiencing.   Patient was not taking any medications for his symptoms.   This case was linked to MOD-2021-037466 (Patient Link).   Most recent FOLLOW-UP information incorporated above includes: On 20-Mar-2023: Live follow up received. Updated patient race and event verbatim.