Objective: To investigate the changes of the clinical features of hydatidiform mole.Methods.One hundred and thirteen cases of hydatidiform mole treated in Peking Union Medical College Hospital during 1989-2006 were reviewed retrospectively and a comparison was made to historic data(1948-1975)using χ2 test.Results: The median age was 28 years (ranges from 20 to 55 years).The median gestational age was 90.2 days.Vaginal bleeding remaines the most common presenting symptom, ocurring in 94 of 113 cases (83.2
来源：生殖医学杂志 2007 年 16卷 z1期
