has lost all her hair; lost all her hair was reported as worsened.; This is a spontaneous report received from contactable reporter(s) (Consumer or other non HCP) from medical information team. The reporter is the patient.  An 82-year-old female patient received BNT162b2 (BNT162B2), on 18May2022 as dose 4 (booster), single (Lot number: FK9894) at the age of 82 years for covid-19 immunisation. The patient's relevant medical history included: "cataract surgery", start date: Mar2022 (unspecified if ongoing), notes: cataract surgery had cataract surgery in Mar2022 and before that in Aug2021.; "cataract surgery", start date: Aug2021 (unspecified if ongoing), notes: cataract surgery had cataract surgery in Mar2022 and before that in Aug2021.; "High blood pressure" (unspecified if ongoing), notes: She has high blood pressure and stuff like that. There were no concomitant medications. Vaccination history included: BNT162b2 (Dose: 1, SINGLE, Lot: EL9269, Expiry date: Unknown, Site: Unknown), administration date: 04Mar2021, when the patient was 81-year-old, for COVID-19 immunization; BNT162b2 (Dose: 2, SINGLE, Lot: EP7534, Expiry date: Unknown, Site: Unknown), administration date: 25Mar2021, when the patient was 81-year-old, for COVID-19 immunization; BNT162b2 (Dose: 3, SINGLE, Lot: FF2590, Expiry: Unknown, Site: Unknown), administration date: 12Oct2021, when the patient was 81-year-old, for COVID-19 immunization, reaction(s): "hair loss", "cataract surgery". The following information was reported: ALOPECIA (non-serious) with onset 2022, outcome "not recovered", described as "has lost all her hair"; CONDITION AGGRAVATED (non-serious) with onset 2022, outcome "not recovered", described as "lost all her hair was reported as worsened.". Relevant laboratory tests and procedures are available in the appropriate section.  Additional information: Patient had high blood pressure and stuff like that, but nothing that is out of the ordinary for someone that is 82 years old. Started hair loss at the end of February early March. The beauticians said lots of women are losing their hair at various ages. Patient had lost all her hair, and if she has to live with it, she has to live with it. Patient scheduled to get next booster. She had a very thick head of hair. The beauticians mentioned something to her about the amount of women that lost their hair and the only thing that they could come up with was that all the women had been vaccinated. Her hair loss started in the spring 2022 like late Feb2022 or Mar2022. She was curious as to why this happened. It may have nothing to do with it, but this was strange. Her hair loss started in the spring 2022 like late Feb2022 or Mar2022. She is curious as to why this happened. It may have nothing to do with it, but this is strange. Other Conditions: No, Investigations: No. She has had 4 doses of the Covid-19 Vaccine. 2 primary doses and 2 booster doses. Her last dose before she lost her hair was on 12Oct2021. Her last dose she had in May2022 after she had already lost most of her hair. Booster dose due to high risk or frequent institutional or occupational exposure to coronavirus (and at risk of serious COVID-19 complications): Not applicable. Booster dose due to a weakened immune system: if the reason is a weakened immune system: Not applicable. Prior Vaccinations (within 4 weeks): none, but had cataract surgery in Mar2022 and before that in Aug2021.Family Medical History Relevant to Adverse Events (AEs): none. Relevant Tests: None. Specific Relevant Test: Not applicable.; Sender's Comments: Linked Report(s) : US-PFIZER INC-202201261871 same patient, different drug dose and different event.;US-PFIZER INC-202201268158 same patient, different drug dose and different event.;