低钙血症的临床表现是多种多样的,常见的表现是明显的手足搐搦,有的甚至癫痫发作。许多低钙血症病人可因易激动,抑郁或记忆力障碍而误诊为精神病。在研究钙异常的肿瘤病人中,发现低钙血症(16％)较高钙血症(0·6％)多见。在经筛选的15000多名健康人中,低钙血症(<8 mg/dl)的发病率是0·6％。发现低钙血症病人时,医生要考虑三方面的问题:①病人有无症状?②低钙 The clinical manifestations of hypocalcemia are varied, the common manifestations are obvious tetany, and some even seizures. Many patients with hypocalcemia may be misdiagnosed as psychiatric due to agitation, depression or memory impairment. Hypocalcemia (16%) was found to be more common in hypercalcaemia (0.6%) than in patients with tumors with abnormal calcium. The incidence of hypocalcemia (<8 mg / dl) was 0.6% among the more than 15,000 healthy people screened. Found hypocalcemia patients, the doctor should consider three aspects of the problem: ① patients with asymptomatic? ② low calcium