Patent Urachus

Overview


Plain-Language Overview

Patent urachus is a rare condition that affects the connection between the bladder and the belly button in newborns. Normally, this connection closes before birth, but in this condition, it remains open, creating a small tube. This tube can cause urine to leak from the belly button, which is a key sign. The condition involves the urinary system, specifically the bladder and the umbilical area. It can lead to infection or irritation around the belly button if not treated. Early diagnosis is important to prevent complications and ensure proper healing.

Clinical Definition

Patent urachus is a congenital anomaly characterized by the failure of the urachus, a fibrous remnant of the allantois, to close after birth. This results in a persistent tubular connection between the bladder dome and the umbilicus. The core pathology is incomplete obliteration of the urachal lumen, which normally involutes during fetal development. Clinically, it presents with urine leakage from the umbilicus, possible periumbilical infection, and sometimes an associated urachal cyst or sinus. The condition is significant because it can lead to recurrent infections, skin irritation, and rarely, malignant transformation if left untreated. Diagnosis and management are essential to prevent these complications.

Clinical Presentation


Diagnostic Workup


Pathophysiology


Treatments


Prevention


Outcome & Complications


Differential Diagnoses


Medical Disclaimer: The content on this site is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. If you think you may be experiencing a medical emergency, call 911 or your local emergency number immediately. Always consult a licensed healthcare professional with questions about a medical condition.

Artificial Intelligence Use: Portions of this site’s content were generated or assisted by AI and reviewed by Erik Romano, MD; however, errors or omissions may occur.

Analytics Disclosure: If you allow analytics cookies, Doctogenic uses Google Analytics, Microsoft Application Insights, and Microsoft Clarity to understand site usage, diagnose issues, review heatmaps and session replay recordings, and improve the service on pages where those tools are enabled. Clarity is not enabled on account, purchase, billing, checkout, Stripe-related, or admin pages. You can change this choice through Cookie preferences.

USMLE® is a registered trademark of the Federation of State Medical Boards (FSMB) and the National Board of Medical Examiners (NBME). Doctogenic and Roscoe & Romano are not affiliated with, sponsored by, or endorsed by the USMLE, FSMB, or NBME. Neither FSMB nor NBME has reviewed or approved this content. "USMLE Step 1" and "USMLE Step 2 CK" are used only to identify the relevant examinations.