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Idiopathic urethrorrhagia, or blood spotting in boys, often presents with dysuria in winter/spring. Endoscopy may increase stricture risk and is often unnecessary for diagnosis.
Area of Science:
- Pediatric Urology
- Urologic Pathology
Background:
- Urethrorrhagia, characterized by blood spotting on undershorts in toilet-trained boys, is a rare condition.
- The etiology of idiopathic urethrorrhagia remains largely unknown, with potential links to infectious agents.
Purpose of the Study:
- To investigate the clinical presentation, natural history, and management of idiopathic urethrorrhagia in prepubertal boys.
- To evaluate the necessity and potential risks of routine endoscopic procedures in diagnosing urethrorrhagia.
Main Methods:
- Retrospective review of 21 toilet-trained, prepubertal boys diagnosed with urethrorrhagia over an 11-year period.
- Analysis of patient demographics, presenting symptoms, laboratory findings, radiographic studies, and treatment outcomes.
- Comparison of stricture development in patients who underwent cystoscopy versus those who did not.
Main Results:
- The median age at presentation was 7 years, with most cases occurring in winter and spring.
- Dysuria was the most frequent accompanying symptom; laboratory and radiographic studies were often normal.
- Symptoms persisted for a median of 6-12 months, with strictures developing in 3 patients post-endoscopy.
- No strictures developed in patients who did not undergo cystoscopy.
Conclusions:
- Idiopathic urethrorrhagia in boys is a self-limiting condition with an unknown etiology, possibly infectious.
- Routine cystoscopy is not recommended due to lack of diagnostic benefit and potential risk of urethral stricture formation.
Abstract:
During a 11-year period 21 toilet-trained, prepubertal boys were seen with blood spotting on the undershorts (urethrorrhagia) between voidings. Most patients presented in the winter and spring months as opposed to the summer and fall months. The median age at presentation was 7 years. The most frequent presenting system, in addition to urethrorrhagia, was dysuria. Laboratory and radiographic studies were frequently normal, although red blood cells were seen microscopically in 57 per cent. Bacterial cultures were always negative. Symptoms persisted for as long as 8 years (median between 6 and 12 months). The etiology of this symptom complex in these cases is unknown but is thought to be an infectious agent. Strictures developed in 3 patients, all of whom had had prior endoscopy. In none of the 6 patients in whom cystoscopy was omitted did a stricture develop. Inasmuch as endoscopy is unnecessary to rule out serious lesions that might mimic idiopathic urethrorrhagia, its use on a routine basis in these patients does not seem warranted.