A great variety of self-inflicted foreign bodies have been removed from the lower urinary tract and male external genitalia. These foreign bodies were inserted or applied for autoerotic, psychiatric, therapeutic, or no definite reasons by the patient. Most patients were too ashamed to admit they had inserted or applied any object and usually presented when a complication had occurred from the foreign body such as difficulty voiding, hematuria, pain or swelling, extravasation, or abscess formation. Inspection and palpation diagnosed foreign bodies involving the male external genitalia in 3 patients and anterior urethra in 6. Radiographic studies with and without contrast medium and endoscopy were required to diagnose foreign bodies in the posterior urethra and bladder in 9 patients, and the exact location, shape, and orientation of the foreign bodies in all sites, radiolucent objects, and the complications of mucosal laceration and extravasation. All 16 foreign bodies in the anterior urethra (below urogenital diaphragm) were removed by endoscopic manipulation in the 6 patients. Nine foreign bodies in the posterior urethra or bladder (above the urogenital diaphragm) were removed by endoscopic manipulation in 2 females and 2 males, while suprapubic cystotomy was required in I female and 4 males. The 3 foreign bodies applied to the external genitalia of 3 males were removed carefully to avoid injury to the underlying skin. Foreign bodies lying below the urogenital diaphragm were palpable and readily removed endoscopically while foreign bodies above the urogenital diaphragm required greater endoscopic manipulation or open surgical procedures.