Non-cancer Lichen planus; Mouth lesions on lower left, upper left, upper right, lower right and right cheek; This is a spontaneous report from a contactable consumer or other non hcp.A female patient of an 61 year old received BNT162B2 (BioNTech COVID-19 Vaccine,Solution for injection, Lot number was not reported), via an unspecified route of administration, administered in Arm Right on 13Mar2021 13:00 as 1stdose, single for covid-19 immunisation (Age at vaccination was 60 years).A female patient of an unspecified age received BNT162B2(CONMINTARY, Solution for injection, Lot number was not reported), via an unspecified route of administration, administered in Arm Right on 06Apr2021 14:30 as 2nddose, single for covid-19 immunisation. Medical history included diabetes mellitus from an unknown date and unknown if ongoing, hypertension from an unknown date and unknown if ongoing High blood pressure, blood cholesterol increased from an unknown date and unknown if ongoing, sleep apnoea syndrome from an unknown date and unknown if ongoing, iodine allergy from an unknown date and unknown if ongoing Known allergies: Iodine scan dye. Concomitant medication(s) included metformin (METFORMIN) taken for an unspecified indication, start and stop date were not reported; simvastatin (SIMVASTATIN) taken for an unspecified indication, start and stop date were not reported; losartan (LOSARTAN) taken for an unspecified indication, start and stop date were not reported; linagliptin (TRADJENTA) taken for an unspecified indication, start and stop date were not reported; pioglitazone hydrochloride (PIOGLA) taken for an unspecified indication, start and stop date were not reported; vitamin d3 (VITAMIN D3) taken for an unspecified indication, start and stop date were not reported. The patient experienced mouth lesions on lower left, upper left, upper right, lower right and right cheek on 16Mar2021, non-cancer lichen planus on 28Jun2021 with.  The patient underwent lab tests and procedures which included biopsy: non-cancer lichen planus   on 28Jun2021, sars-cov-2 test: negative   on   Don't know.  Therapeutic measures were taken as a result of mouth lesions on lower left, upper left, upper right, lower right and right cheek (oral disorder). Upon follow-up 09Aug2021 is a follow-up spontaneous report from a contactable consumer. This consumer (patient) reported in response to consumer letter sent via follow-up letter which included that patient age at time of vaccination was 60 years, Pfizer/BioNTech COVID-19 vaccine details about 1st and 2 nd dose (date, time, anatomical site of injection, batch/Lot number COVID vaccine shot, not available/ provided at time of report completion, relevant tests mouth lesion, Biopsy date 28Jun2021, result non-cancer lichen planus, adverse events seriousness criteria not serious. In narrative it was included   patient started feeling a lesion in my lower left area of mouth in front of my lower teeth the day after the 2nd shot of the vaccine 07Apr2021. Went to my dentist, they photographed it thought it was an allergic reaction to vitamin D3 I was taking, but stopped that and it got worse, went to dentist a few weeks later then lesions got larger and there were more. Dental hygienist said they never saw them in my mouth in the 6 years of cleaning my teeth, surgeon suggested a biopsy and they removed a portion from upper right side inside cheek area (6 stitches). Confirmed lichen Planus 'Possibly due to vaccine. Outcome of the events was not recovered.  Upon follow-up 09Aug2021 is a follow-up spontaneous report from a contactable consumer. This consumer (patient) reported in response to consumer letter sent via follow-up letter which included that patient age at time of vaccination was 60 years, Pfizer/BioNTech COVID-19 vaccine details about 1st and 2nd dose (date, time, anatomical site of injection, batch/Lot number COVID vaccine shot, not available/ provided at time of report completion, relevant tests mouth lesion, Biopsy date 28Jun2021, result non-cancer lichen planus, adverse events seriousness criteria not serious. In narrative it was included   patient started feeling a lesion in my lower left area of mouth in front of my lower teeth the day after the 2nd shot of the vaccine 07Apr2021. Went to my dentist, they photographed it thought it was an allergic reaction to vitamin D3 I was taking, but stopped that and it got worse, went to dentist a few weeks later then lesions got larger and there were more. Dental hygienist said they never saw them in my mouth in the 6 years of cleaning my teeth, surgeon suggested a biopsy and they removed a portion from upper right side inside cheek area (6 stitches). Confirmed lichen Planus 'Possibly due to vaccine. Device Date: 14Jul2021.  The lot number for the vaccine, [BNT162B2], was not provided and will be requested during follow up.