May Be Caused by

 Common

Bladder calculus

Chronic infection of bladder

 Uncommon

Alkaline-encrusted cystitis

Alkaptonuria

Amyloidosis

Blood clot

Cyclophosphamide cystitis

Cystinuria

Drug reaction

Foreign body

Hemangioma

Hematoma

Hyperparathyroidism

Mitomycin C instillation

Neuroblastoma

Ovarian cystadenocarcinoma

Oxalosis

Pheochromocytoma

Prune-belly syndrome

Radiation reaction

Rectal colloid carcinoma

Renal tubular acidosis

Schistosomiasis haematobium

Stevens-Johnson syndrome

Transitional cell carcinoma

Tuberculosis

Wilson disease