INTRODUCTION Pathological substances produced by the body and entering the urinary bladder cannot be considered foreign bodies. They are more common in women than in men, with a ratio of 100:1 according to some statistics (Sonntag). They can be of animal, plant, or mineral origin. Medical foreign bodies remain after certain surgical interventions, either in the bladder itself or on surrounding organs, due to negligence, carelessness, incorrect use, or poor quality of materials. CASE REPORT Patient C.R. from the vicinity of Donji Milanovac, aged 30, presented to our clinic complaining of frequent urination, burning sensation during urination, and occasional sudden cessation of urination. Anamnestic data were very scarce, except for the mentioned symptoms. Urine sediment showed a significant number of pale red blood cells and rare bacteria. Urine culture yielded sterile cultures. Descending cystography revealed an ellipsoid contrast defect. Subsequent urethrocystoscopy showed a urethra easily passable for a Ch 20 cystoscope sheath, with a short prostatic urethra of about 2 cm. CONCLUSION Operative findings revealed: A round dark-brown formation, the size of a pigeon's egg, was observed in the bladder lumen. A "stone" was extracted from the bladder lumen with stone forceps and placed in a kidney basin. After completing the operation, the image showed a foreign body. Three snake-like objects, twisted, with a length of about 10 cm and a thickness of about 10 mm, were found in the kidney basin. They were candles.