lump between his neck and his shoulder/got the lumps on Friday/Developed a lump in between my neck and my shoulder; This is a spontaneous report from a contactable consumer (Patient). A 27-years-old male patient received bnt162b2 (PFIZER-BIONTECH COVID-19 VACCINE, Solution for injection, Lot Number: FA7484), dose 1 via an unspecified route of administration on 25Jul2021 (Age at vaccination: 27 years) as dose 1, single for covid-19 immunisation. The patient medical history and concomitant medications were not reported. The patient experienced "lump between his neck and his shoulder/got the lumps on friday/developed a lump in between his neck and his shoulder" on 30Jul2021. He received his first dose of the Pfizer BioNTech Covid-19 Vaccine three weeks ago. Reporter states that after five days he developed a lump between his neck and his shoulder on the side he got his injection. The lump was still there after two weeks and he was concerned. He was asking that he should consult his doctor about this. He was asking if he should get his second dose of the vaccine after experiencing this side effect from the first dose and he should get his second dose in the opposite arm given his side effects from the first dose. He received response that it sounds like he may be experiencing swollen lymph nodes, which was a commonly reported side effect of the vaccine, but advised caller that Pfizer does not assess or treat patients, and he would need to follow up with his HCP to confirm what he is experiencing.he got in response that Swollen lymph nodes (lymphadenopathy), which generally resolved within 10 days, was likely to have resulted from a robust vaccine-elicited immune response. The (withheld) provides information regarding Possible Side Effects After Getting a COVID-19 Vaccine. COVID-19 vaccination will help protect you from getting COVID-19. You may have some side effects, which are normal signs that your body is building protection. These side effects may affect your ability to do daily activities, but they should go away in a few days. Some people have no side effects. Side effects after your second shot may be more intense than the ones you experienced after your first shot. These side effects are normal signs that your body is building protection and should go away within a few days. Call the vaccination provider or your healthcare provider if you have any side effects that bother you or do not go away. He received Response: Spoke from FAQ-COVID-19 Vaccine-receiving second dose after side effect from first dose. As noted in the Fact Sheet for Recipients, you should not get the Pfizer-BioNTech COVID-19 Vaccine if you had a severe allergic reaction after a previous dose of the vaccine or if you had a severe allergic reaction to any ingredient of the vaccine. The decision to receive the second dose for any other reason cannot be made by Pfizer. We refer you to speak to your healthcare provider about the risks of the vaccine compared to the risks of potentially not being fully protected against COVID-19 infection. Your healthcare provider knows your health situation and has access to information that can better help inform this decision. Caller asking if he should get his second dose in the opposite arm given his side effects from the first dose He received Response: Informed caller that the Pfizer BioNTech Covid-19 Vaccine is an intramuscular injection. Advised caller to speak with vaccination provider at time of second dose in determining whether second dose should be given in the other arm. Informed caller that it is appropriate to receive the dose in the other arm if not contraindicated for any other reason. Consumer was informed that correct option for Medical Information is 3. Further probing could not be done as consumer hung up abruptly. Hence, product details (expiration date, NDC, UPC), purchase details and other details were unknown and limited information was available over the call. Patient did not receive any treatment for the event. The outcome of the event was not recovered.  Consumer was provided with the number of Pfizer Medical Information.