Cystitis and vulvovaginitits, due to Corynebacterium pilosum and Actinomyces pyogenes infection in a 2-month-old female calf, is described. The prominent clinical signs were urinary incontinence, adherence of triple phosphate crystals to the vulvar hair and ulceration on the vulva, the ventral side of the tail skin and the perineum. Only a mild inflammation of the bladder mucosa and submucosa was seen on histological examination.
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