Gross haematuria after mRNA COVID‐19 vaccination in two patients with histological and clinical diagnosis of IgA nephropathy.

Kidney biopsy confirmed IgA nephropathy with Oxford classification M1E0S0T0-C0 without features suggestive of lupus nephritis. As flare of IgA nephropathy after COVID-19 vaccination is uncommon and mostly benign, it should not be a reason for deterring vaccination. A 28 years old lady with history of microscopic haematuria for 5 years underwent a pre-scheduled kidney biopsy for suspected IgA nephropathy. [Extracted from the article]