From contraception to calculus: copper-T migration resulting in vesical calculus formation.

A woman in her 40s presented with persistent lower urinary tract symptoms (LUTS) over 6 months, including suprapubic pain and dysuria. Initial investigations were inconclusive until non-contrast CT revealed a large bladder stone encapsulating an intrauterine contraceptive device (Copper-T). She underwent successful perurethral cystolithotripsy using Holmium:YAG laser, resulting in complete stone and device removal. This case underlines the importance of suspecting migrated intrauterine devices in unexplained LUTS and highlights minimally invasive endourological techniques as effective management.