遗传性多发性骨软骨瘤为一少见的遗传性家族性骨病，而父母两家系同患此病更为罕见。本组为父母两家族中9例患此病的调查报告。临床资料本组父母家系四代，共23人，男IO人，女13人，最大年龄80岁，最小4岁。发病9例，男7例，女2例，发病率为39％，父母非血缘关系。患者，男性， Hereditary multiple osteochondroma is a rare hereditary familial osteopathy, and the two parents with the same disease are more rare. This group is an investigation report of 9 cases of both parents in the family. Clinical data This group of parents has four generations of family history, a total of 23 people, male IO, female 13 people, the maximum age of 80 years old, minimum 4 years old. In 9 cases, there were 7 males and 2 females, the incidence rate was 39%, and the parents had no blood relationship. Patient, male,