He keeps sleeping on the same side, so his neck is messed up.; The injection site is red; there are reddish spots; The injection site is red; there are reddish spots; Not being able to sit up or stand up properly without having pain; For a while, there'd be some dull pain and aches in his shoulder and rest of his arm, but manageable/Recently, it's a lot of severe pain in his shoulder/His elbow has very severe sharp pain; felt like he had the flu for two days; A couple hours after, he couldn't lift his right arm above his shoulder. It was like that for a week and a half; dull pain and aches in  his shoulder and rest of his arm; bumps near the injection site; bumps near the injection site that are very painful; This spontaneous case was reported by a consumer and describes the occurrence of MUSCULOSKELETAL DISCOMFORT (He keeps sleeping on the same side, so his neck is messed up.), INFLUENZA LIKE ILLNESS (felt like he had the flu for two days), VACCINATION SITE MOVEMENT IMPAIRMENT (A couple hours after, he couldn't lift his right arm above his shoulder. It was like that for a week and a half), PAIN IN EXTREMITY (dull pain and aches in  his shoulder and rest of his arm) and VACCINATION SITE MASS (bumps near the injection site) in a 38-year-old male patient who received mRNA-1273 (Moderna COVID-19 Vaccine) (batch nos. 006C21A and 026A21A) for COVID-19 vaccination. The occurrence of additional non-serious events is detailed below.     No Medical History information was reported.   On 10-Apr-2021, the patient received first dose of mRNA-1273 (Moderna COVID-19 Vaccine) (Intramuscular) 1 dosage form. On 08-May-2021, received second dose of mRNA-1273 (Moderna COVID-19 Vaccine) (unknown route) dosage was changed to 1 dosage form. In May 2021, the patient experienced INFLUENZA LIKE ILLNESS (felt like he had the flu for two days), VACCINATION SITE MOVEMENT IMPAIRMENT (A couple hours after, he couldn't lift his right arm above his shoulder. It was like that for a week and a half), PAIN IN EXTREMITY (dull pain and aches in  his shoulder and rest of his arm), VACCINATION SITE MASS (bumps near the injection site), VACCINATION SITE PAIN (bumps near the injection site that are very painful), MYALGIA (Not being able to sit up or stand up properly without having pain) and ARTHRALGIA (For a while, there'd be some dull pain and aches in his shoulder and rest of his arm, but manageable/Recently, it's a lot of severe pain in his shoulder/His elbow has very severe sharp pain). On an unknown date, the patient experienced MUSCULOSKELETAL DISCOMFORT (He keeps sleeping on the same side, so his neck is messed up.), VACCINATION SITE ERYTHEMA (The injection site is red; there are reddish spots) and VACCINATION SITE RASH (The injection site is red; there are reddish spots). At the time of the report, MUSCULOSKELETAL DISCOMFORT (He keeps sleeping on the same side, so his neck is messed up.), VACCINATION SITE MASS (bumps near the injection site), VACCINATION SITE PAIN (bumps near the injection site that are very painful), VACCINATION SITE ERYTHEMA (The injection site is red; there are reddish spots) and VACCINATION SITE RASH (The injection site is red; there are reddish spots) outcome was unknown, INFLUENZA LIKE ILLNESS (felt like he had the flu for two days) had resolved and VACCINATION SITE MOVEMENT IMPAIRMENT (A couple hours after, he couldn't lift his right arm above his shoulder. It was like that for a week and a half), PAIN IN EXTREMITY (dull pain and aches in  his shoulder and rest of his arm), MYALGIA (Not being able to sit up or stand up properly without having pain) and ARTHRALGIA (For a while, there'd be some dull pain and aches in his shoulder and rest of his arm, but manageable/Recently, it's a lot of severe pain in his shoulder/His elbow has very severe sharp pain) had not resolved.        For mRNA-1273 (Moderna COVID-19 Vaccine) (Intramuscular), the reporter did not provide any causality assessments.   No concomitant medication and treatment information was reported.   Most recent FOLLOW-UP information incorporated above includes: On 03-Nov-2021: Added reporter's(HCP) information.