A 67-year-old man presented with recurrent sepsis, groin swelling, and lower urinary tract symptoms 12 years after bilateral TEP inguinal hernia repair. Diagnosis of mesh migration and erosion into the urinary bladder was made by cystoscopy. Exploration of the groin confirmed Prolene mesh erosion into the lateral wall of the urinary bladder. This is the second reported case following TEP repair. A review of the literature reveals eight reported cases following laparoscopic repair since 1994. The factors contributing to mesh migration and erosion are discussed. With large case series of mesh non-fixation being reported in world literature, it may be that the incidence of this complication will increase in the future. A lower diagnostic threshold and reporting of this complication should be encouraged.