由骨骼推定成年人年龄,一般常用耻骨联合面、牙齿、颅骨、肱骨等。使用胸骨推定年龄者,则较为少见。笔者对胸骨推断年龄的可能性进行了研究,现将结果报告如下。一、材料102例已知准确性别、年龄的胸骨,男性76例,女性26例。最大年龄50岁。最小年龄14岁。其中14～17岁的5例,18～21岁的18例,22～25岁的20例,26～29岁的12例, Estimated from the skeletal age of adults, commonly used pubic symphysis, teeth, skull, humerus and so on. The use of sternal estimated age, is more rare. The author of the breast inferred possibility of age were studied, the results are reported as follows. First, the material 102 cases of known gender, age, sternum, 76 males and 26 females. The oldest is 50 years old. The minimum age is 14 years old. Among them, 5 cases were 14-17 years old, 18 cases were 18-21 years old, 20 cases were 22-25 years old, 12 cases were 26-29 years old,