Chyluria is a urological manifestation of lymphatic system disease. Sclerotherapy of the renal pelvis (RPIS) using 1% silver nitrate, along with diethyl carbamazine, is the treatment most frequently used. Massive haematuria due to intrarenal aneurysm following RPIS has not been reported. A case is described here of arterial haemorrhage following instillation of silver nitrate which was treated by coil embolization. The haematuria was immediately stopped and the renal function returned to normal gradually.