Sex: F
Vaccine: COVID19
Symptoms: Dysmenorrhoea, Menstruation irregular, SARS-CoV-2 test
Clinical narrative: There is a pattern after 2 month from each shot where the periods get irregular and painful; There is a pattern after 2 month from each shot where the periods get irregular and painful; This is a spontaneous report received from a contactable reporter(s) (Consumer or other non HCP). The reporter is the patient.  An adult female patient received BNT162b2 (BNT162B2), on 22Oct2021 as dose 3 (booster), single (Lot number: FE3592), in arm for covid-19 immunisation. The patient's relevant medical history included: "Patient's medical history: None" (unspecified if ongoing), notes: Patient's medical history: None. There were no concomitant medications. Vaccination history included: BNT162b2 (Dose:01, Anatomical site of injection: Arm, Batch/Lot number: Pfizer EN6207), administration date: 31Mar2021, for COVID-19 Immunization, reaction(s): "There is a pattern after 2 month from each shot where the periods get irregular and painful", "There is a pattern after 2 month from each shot where the periods get irregular and painful"; BNT162b2 (Dose:02, Anatomical site of injection: Arm, Batch/Lot number: Pfizer ER8729), administration date: 21Apr2021, for COVID-19 Immunization, reaction(s): "There is a pattern after 2 month from each shot where the periods get irregular and painful", "There is a pattern after 2 month from each shot where the periods get irregular and painful". The following information was reported: MENSTRUATION IRREGULAR (non-serious), DYSMENORRHOEA (non-serious), outcome "not recovered" and all described as "There is a pattern after 2 month from each shot where the periods get irregular and painful". Relevant laboratory tests and procedures are available in the appropriate section. Therapeutic measures were not taken as a result of menstruation irregular, dysmenorrhea.  Additional information: All COVID-19 tests have came back negative. Never have had a positive case of COVID-19. Was not on birth control and have not been since 2018. No hormonal medications since 2018. No prescribed medications. Started taking Flovitamins Jan2023 to help with period symptoms since shot has had no effect. In summer 2021, noticed periods were not on time. Periods became random by 2022. Patient reported that "I didn't take much note as I was not in relationships at that time. In summer 2022, patient started tracking her cycle. I'd gone from 4 week cycle to 45 days cycle skipping weeks at a time. Periods were long, painful and severe. Periods have never returned to normal with no birth control or medications being used since 2018, the only thing that's changed besides a flu shot in me is the C-19 shot. There was a pattern after 2 months from each shot where the periods get irregular and painful. They have not gone back to normal and we fear this will affect the ability to get pregnant with non-regular cycles". Patient received 4th dose on 19Oct2022 at Arm, Lot: GJ2524. Prior vaccinations within 4 weeks: None. Specific relevant test for thromboembolic events with thrombocytopenia: None.; Sender's Comments: Linked Report(s) : US-PFIZER INC-202201364680 same patient/drug, different dose;