患者 女,56岁。主因多饮、夜尿量多15年,间断四肢痛6年,加重伴血尿2月再入院。患者于入院前15年,无明显诱因出现烦渴、多饮、夜尿量多,曾有一次四肢肌肉软瘫发作病史。当时诊为低血钾,后在我院进一步诊为肾小管酸中毒。入院前6年出现间歇性腰痛、四肢痛。入院前2个月因劳累后血尿再住我院。家族史无特殊。查体:发育 Female patient, 56 years old. The main reason for drinking, nocturnal discharge more than 15 years, intermittent limb pain for 6 years, increased with hematuria in February re-admission. Patients 15 years before admission, there is no obvious incentive to polydipsia, polydipsia, nocturnal discharge and more, there was a history of muscle and limb paralysis. At that time diagnosed as hypokalemia, further diagnosed in our hospital renal tubular acidosis. 6 years before admission, intermittent low back pain, limb pain. 2 months before admission due to fatigue, hematuria and then live in our hospital. No special family history. Physical examination: development