Arthritis/Pain/When I say pain on scale 1 to 10, it is 10 everyday; I can't go upstairs, I can't go down stairs, it is really hard; This is a spontaneous report received from a contactable reporter(s) (Consumer or other non HCP). The reporter is the patient.  A 43-year-old patient received bnt162b2 (BNT162B2 NOS), as dose 2, single (Batch/Lot number: unknown) and as dose 3 (booster), single (Batch/Lot number: unknown) for covid-19 immunisation. The patient's relevant medical history and concomitant medications were not reported. Vaccination history included: Bnt162b2 (Dose 1), administration date: 2020, for Covid-19 Immunization, reaction(s): "I got the vaccine I just start having issues with my knees". The following information was reported: ARTHRITIS (non-serious), outcome "unknown", described as "Arthritis/Pain/When I say pain on scale 1 to 10, it is 10 everyday"; MOBILITY DECREASED (non-serious), outcome "unknown", described as "I can't go upstairs, I can't go down stairs, it is really hard". Patient reported that during the COVID time, got the first vaccine and then the other two later patient was trying like, patient does not remember that the patient has vaccine card and since patient has got the first vaccine it was 2020 probably or does not remember exactly but some months after patient got the vaccine, patient just started having issues with knees but now after three years they found that the patient has arthritis and did not have a problem with the patient's knees, any problem in the patient's body. So, the patient was concerned how can the patient complain or ask questions that patient has right now because it's weird. The patient was 43 years old and now the doctor says that it was really not coming case that patient got this arthritis having right now and the patient was in pain everyday so the patient found now that it's not just the patient, many patients and the internet that they say probably the vaccine that they got for the COVID. When paraphrased the above concern, reporter stated, "I am dealing with this problem everyday so in the beginning, I say okay. I was like maybe I did something wrong, maybe I play some sport but now the doctor says that I do not have any tear in my knees, I do not need any surgery and they have found now that it's arthritis and now I am in pain every single day for hours. I can't go upstairs, I can't go down stairs, it is really hard but I am not the first person, in my mind I am saying okay maybe it's from my family but the doctor says you really younger person to get arthritis and I am doing with this for almost couple of more than a year with the pain. When I say pain on scale 1 to 10, it is 10 everyday." Reporter stated, "Yes, the COVID-19 Vaccine. I have my card because I do not have it in my hands right now. I have it in home. I am in medical appointment right now but I just was trying to find a number and figure out where I can call because I am not the only human got the other shot. It is probably could be the vaccine because I never had a complaint or may be pain in any of my knee it is weird, it is really weird. Yes, all of them. I choose Pfizer because Pfizer was the most famous company. I am going to get the Pfizer but now I do not have option because doctor say this is not something that I can fix, like when you fix with surgery, with medicine. I have to take pain medicine for 24 hours every day. I do not know what I need to take because all of them are just for pain. You know what I mean." The patient underwent the following laboratory tests and procedures: Pain assessment: 10 everyday. Therapeutic measures were taken as a result of arthritis.  The information on the batch/lot number for bnt162b2 has been requested and will be submitted if and when received.