swollen armpit which was quite large; the pain radiated to the front and back of my shoulder/It was quite painful/shoulder pain; 3rd booster shot; There is no pain now but arm/shoulder does not function normally.; There is no pain now but arm/shoulder does not function normally.; I still have stiffness and limited use of arm; Pain; I do not have full range of motion; This is a spontaneous report received from a contactable reporter(s) (Consumer or other non HCP). The reporter is the patient.  A 70 year-old male patient received bnt162b2 (BNT162B2), intramuscular, administered in arm right, administration date 28Sep2021 (Lot number: 30130BA) as dose 3 (booster), single for covid-19 immunisation. Relevant medical history included: "Post turp surgery issues", start date: 19Aug2021 (unspecified if ongoing), notes: TURP 19Aug2021; "Post-op" (unspecified if ongoing); "TURP Surgery", start date: 19Aug2021, stop date: 19Aug2021, notes: Illness/AE: TURP Surgery, Pertinent details: Surgery 19Aug2021. Concomitant medication(s) included: TAMSULOSIN HCL taken for post procedural complication, transurethral prostatectomy, start date: 28Sep2021, stop date: 26Oct2021. Vaccination history included: Bnt162b2 (Dose: 02, Date: 11Feb2021, Anatomical site of injection: Arm, Batch/Lot number: EN6201 30 mcg/0.3ml, Route of administration: Intramuscular), administration date: 11Feb2021, when the patient was 69 years old, for Covid-19 immunization, reaction(s): "swollen armpit"; Bnt162b2 (Dose: 01, Date: 21Jan2021, Anatomical site of injection: Arm, Route of administration: Intramuscular, Batch/Lot number: EL3302 30 mcg/0.3 ml), administration date: 21Jan2021, when the patient was 69 years old, for Covid-19 immunization, reaction(s): "no adverse effect". The following information was reported: IMMUNISATION (non-serious) with onset 28Sep2021, outcome "unknown", described as "3rd booster shot"; SWELLING (non-serious) with onset 30Sep2021, outcome "recovering", described as "swollen armpit which was quite large"; ARTHRALGIA (non-serious) with onset 30Sep2021, outcome "recovering", described as "the pain radiated to the front and back of my shoulder/It was quite painful/shoulder pain"; LIMB DISCOMFORT (non-serious), MUSCULOSKELETAL DISCOMFORT (non-serious) all with onset 2021, outcome "not recovered" and all described as "There is no pain now but arm/shoulder does not function normally."; MUSCULOSKELETAL STIFFNESS (non-serious) with onset 2021, outcome "unknown", described as "I still have stiffness and limited use of arm"; PAIN (non-serious) with onset 2021, outcome "recovered" (2021), described as "Pain"; HYPOKINESIA (non-serious) with onset 2021, outcome "unknown", described as "I do not have full range of motion". Relevant laboratory tests and procedures are available in the appropriate section. Therapeutic measures were not taken as a result of swelling, arthralgia, musculoskeletal stiffness.  Additional information: The third booster shot he received recently, he had a swollen armpit which was quite large and also the pain radiated to the front and back of his shoulder. It was quite painful and limited the use of his right arm in that he could not extend it without pain. This lasted for about a week and gradually decreased in severity. However, after more than two weeks he still had some shoulder pain and not full use of his right arm. Very swollen armpit, painful right shoulder - front and back. Pain lasted 7-10 days and limited use of arm. He still had stiffness and limited use of arm. Full function had not returned. He visited his doctor to need advice on the reaction he had to the booster (3rd shot). His right arm still was not fully functional. There was still discomfort in his shoulder and he do not have range of motion. His doctor said to do some exercise and give it some time. No covid prior vaccination or post vaccination. No known allergies.  No follow-up attempts are possible. No further information is expected.