his elbows began getting worse and are still painful.; extreme pain in his shoulder and arm on the right side and then on 09Apr2021 he received his second dose in the left arm and 48 hours after that dose developed the same symptoms in his left arm; extreme pain in his shoulder and arm on the right side and then on 09Apr2021 he received his second dose in the left arm and 48 hours after that dose developed the same symptoms in his left arm; Had extreme pain in his shoulder and arm on the right side/excruciating, debilitating pain in right shoulder joint; Had extreme pain in his shoulder and arm on the right side; Cannot lift over his head and can hardly use them; mild arthrosis; the deltoid muscle was extremely inflamed; his elbows were also inflamed and painful but not as painful as his shoulder; his elbows were also inflamed and painful but not as painful as his shoulder; This is a spontaneous report received from contactable reporter(s) (Consumer or other non-HCP) from medical information team for a Pfizer sponsored program. The reporter is the patient. Other Case identifier(s): US-PFIZER INC-202101698009 (Pfizer).  A 54-year-old male patient received bnt162b2 (COMIRNATY), administered in arm right, administration date 19Mar2021 15:00 (Lot number: ER2613) at the age of 54 years as dose 1, single and administered in arm left, administration date 09Apr2021 15:00 (Lot number: EP6955) as dose 2, single for covid-19 immunisation. The patient had no relevant medical history. There were no concomitant medications. The following information was reported: ARTHRALGIA (non-serious) with onset Mar2021, outcome "recovering", described as "Had extreme pain in his shoulder and arm on the right side/excruciating, debilitating pain in right shoulder joint"; PAIN IN EXTREMITY (non-serious) with onset Mar2021, outcome "recovering", described as "Had extreme pain in his shoulder and arm on the right side"; MOBILITY DECREASED (non-serious) with onset Mar2021, outcome "recovering", described as "Cannot lift over his head and can hardly use them"; OSTEOARTHRITIS (non-serious) with onset 2021, outcome "unknown", described as "mild arthrosis"; VACCINATION SITE INFLAMMATION (non-serious) with onset 2021, outcome "recovering", described as "the deltoid muscle was extremely inflamed"; ARTHRALGIA (non-serious), INFLAMMATION (non-serious) all with onset 2021, outcome "not recovered" and all described as "his elbows were also inflamed and painful but not as painful as his shoulder"; CONDITION AGGRAVATED (non-serious), outcome "not recovered", described as "his elbows began getting worse and are still painful."; PAIN IN EXTREMITY (non-serious), ARTHRALGIA (non-serious) all with onset Apr2021, outcome "recovering" and all described as "extreme pain in his shoulder and arm on the right side and then on 09Apr2021 he received his second dose in the left arm and 48 hours after that dose developed the same symptoms in his left arm". The events "had extreme pain in his shoulder and arm on the right side/excruciating, debilitating pain in right shoulder joint", "had extreme pain in his shoulder and arm on the right side", "cannot lift over his head and can hardly use them", "mild arthrosis", "extreme pain in his shoulder and arm on the right side and then on 09apr2021 he received his second dose in the left arm and 48 hours after that dose developed the same symptoms in his left arm" and "extreme pain in his shoulder and arm on the right side and then on 09apr2021 he received his second dose in the left arm and 48 hours after that dose developed the same symptoms in his left arm" were evaluated at the physician office visit. Relevant laboratory tests and procedures are available in the appropriate section. Therapeutic measures were taken as a result of arthralgia, pain in extremity, mobility decreased, vaccination site inflammation, arthralgia, inflammation, pain in extremity, arthralgia.  Additional information: The patient received his first dose of the Pfizer COVID-19 vaccine on 13Mar2021 and within 48 hours had extreme pain in his shoulder and arm on the right side and then on 09Apr2021 he received his second dose in the left arm and 48 hours after that dose developed the same symptoms in his left arm. He stats he is receiving treatment now for his arm and it is improving, and he feels if he continues with his treatment he will be back to normal. Stated that he had his first vaccination in March in his right deltoid and in 48 hour had excruciating, debilitating pain in right shoulder joint that persisted few months. Stated that he had it in his left arm and the same thing happened in his left arm. After receiving the first vaccine the caller experience excruciating and debilitating pain that persisted for months and after receiving the 2nd dose of the vaccine the same thing happened in the left arm. Caller states that after the 1st vaccine the pain was in the shoulder, and he explains that it felt like the deltoid muscle was extremely inflamed. Caller states his elbows were also enflamed and painful but not as painful as his shoulder. Caller states he consulted his physician that gave him a steroid injection in the shoulder and was prescribed physical therapy. Caller states that with the steroid injection and the physical therapy, his shoulder is 90-95% back to normal but his elbows began getting worse and are still painful. Orthopedist gave him Mobic, Diclofenac, anti-inflammatories and pain relievers that did not do much. Provided the pain reliever as Mobic IB. The orthopedic surgeon ordered an MRI, for the shoulders and results don't really show very much beyond just mild arthrosis. Patient would also like to know if there is any possible treatment for this type of adverse reaction. No family medical history relevant to adverse events.  No follow-up attempts are possible. No further information is expected.