Background: Foreign-body granuloma is a potential complication of periurethral injection of calcium hydroxylapatite for the treatment of type III stress urinary incontinence.
Cases: We present two cases of foreign-body granuloma formation after periurethral injection of calcium hydroxylapatite for type III stress urinary incontinence. Excision of the lesion resulted in cessation of pain in a symptomatic patient; however, it led to the resumption of stress urinary incontinence in both cases.
Conclusion: Foreign-body granuloma is not the normative response to periurethral bulking with calcium hydroxylapatite. However, granuloma should be considered when a periurethral mass is encountered after injection of calcium hydroxylapatite for type III stress urinary incontinence.