May Be Caused by

 Common

Adenocarcinoma

Anterior urethral valve

Blood clot

Foreign body

Granulation tissue

Hematoma

Periurethral abscess

Posterior urethral valve

Postoperative scar

Presacral sinus tract

Squamous cell carcinoma

Transitional cell carcinoma

Urethral stricture

 Uncommon

Adenomatous polyp

Calculus

Condyloma acuminata

Ectopic ureterocele

Fibroepithelial polyp

Hemangioma

Inflammatory polyp

Lymphangioma

Melanoma

Metastasis

Mullerian duct cyst

Nephrogenic adenoma

Papilloma

Rhabdomyosarcoma

Spindle cell tumor

Urethral diverticulum

Urethritis

Urethritis cystica

Verumontanum hypertrophy