慢性隐性失血患者多无临床症状,或仅有继发于贫血的疲劳。心悸( palpitations ) 、体位性头晕( postural light-headedness )和劳力性呼吸困难( exertional dyspnea )提示患者存在更为严重的贫血。部分缺铁症( iron deficiency )患者表现为异食癖( pica )或强迫性摄食冰块或泥土等。消化不良( dyspepsia ) 、腹痛、烧心( heartburn )或反胃( regurgitation )提示消化性疾病的可能大,而体重减轻和食欲 ......