泌尿系结石之一种为草酸钙结石,其病因为尿中草酸盐浓度增加。此病可继发于肝硬化、糖尿病、结节病(Sarcoidosis)、寄生虫、及饮乙二醇之后。但亦可为原发性家族性之疾病。作者报告4个姐妹患有家族性尿草酸盐增多症,均反复发生草酸钙尿结石,并均经手术治疗,4个姐妹中3个于手术后长期口服氧化镁150毫克每日3次,观察4年未有结石复发。其余一个拒服氧化镁而 One of the urinary stones is calcium oxalate stone, the cause of which is an increase in urinary oxalate concentration. The disease can be secondary to cirrhosis, diabetes, Sarcoidosis, parasites, and after drinking glycol. But it can also be a primary familial disease. The authors report that 4 sisters had familial urinary oxalicosis, recurrent calcium oxalate stones, and were surgically treated. Three of the 4 sisters had long-term oral administration of 150 mg of magnesium oxide 3 times daily after surgery, No recurrence of stones was observed in 4 years. The other one refused to accept magnesium oxide