hair loss; maybe her arm hurt a little bit; experienced something really strange; This is a spontaneous report received from a contactable reporter(s) (Consumer or other non HCP) from medical information team. The reporter is the patient.  A 64 year-old female patient received bnt162b2 (BNT162B2), administered in arm left, administration date 22Sep2021 10:00 (Lot number: EWO186) at the age of 64 years as dose 1, single for covid-19 immunisation. The patient's relevant medical history and concomitant medications were not reported. The following information was reported: ALOPECIA (non-serious) with onset Sep2021, outcome "not recovered", described as "hair loss"; PAIN IN EXTREMITY (non-serious) with onset Sep2021, outcome "unknown", described as "maybe her arm hurt a little bit"; FEELING ABNORMAL (non-serious) with onset Sep2021, outcome "unknown", described as "experienced something really strange". The event "hair loss" was evaluated at the physician office visit. Relevant laboratory tests and procedures are available in the appropriate section. Additional information: The patient inquiring about side effect information for the Pfizer Covid-19 vaccine (purple top). The patient reports that, she received both doses and after the first dose, she began experiencing hair loss. Caller asks, could this by a reaction from the vaccine? The patient reports that she spoke to her stylist who reported that, a lot of her clients have been losing hair. Reporter seriousness for her hair started coming out and maybe her arm hurt a little bit: Unspecified. The reporter states her question, she was just wondering if when you get both vaccines if there were symptoms like a cough, headache, fever and aches and she has not had anything except maybe her arm hurt a little bit and the experienced something really strange and it started in the timeline of when she got the vaccine and was wondering if various things are not symptoms but are side effects from the vaccine or causing what she is going though; caller clarifies to state her hair started coming out and she does not know if what she experienced was related to the vaccine and there was no way to know other than the timeline and if this was a reaction from it. The patient Stated that, after her 1st dose of the Pfizer COVID19 vaccine her hair started coming out and she always had really thick hair and it was coming out on her pillow when she washes it, it was in her fingers and it was just weird for 64 years she has had hair and her stylist she saw on 01Sep2021 and the stylist said it was not what it was and strangely enough a lot of clients say they were losing their hair and it was not just random things. The patient stated that hair loss began she does not know exactly what day but noticed it towards the end of Sep. She called her doctor and thought maybe it was something wrong with her thyroid and they checked that and no her thyroid was fine and there was no medical reason for this to be happening. 2nd dose was administered on 13Oct2021. She was pretty healthy and does not take any medications at all. The patient Stated the first dose of her Pfizer COVID Vaccine was administered on 22Sep2021 and her patient card has the lot number of EW and she does not know if it was a zero or V and then 186 written for the lot; states the 2nd dose was administered on 13Oct2021 and the patient card does not state the lot or have it written on it. After that, reporter stated that, she had a correction for the Pfizer COVID Vaccine 1st dose lot number and it was the letter O so the lot is EWO186. Vaccine Administered at Vaccination Facility Type: Public health clinic. There was no Additional Vaccines Administered on Same Date of the Pfizer Suspect and no Prior Vaccinations (within 4 weeks), AE(s) following prior vaccinations, Patient's Medical History (including any illness at time of vaccination) and no Family Medical History Relevant to AE(s). No follow-up attempts are possible. No further information is expected.; Sender's Comments: Linked Report(s) : US-PFIZER INC-202101579457 same reporter/patient/product, different dose/event.