作者根据手术治疗的腹股沟斜疝病例的57个家系调查,发现患者135例,其中男性124例,女11例。男女比例为13.6:1。家系分析表明男性患者分离比p=0.4529,外显率为0.9058。用分离分析数学模型计算机程序分析,分离比p=0.45。外显率为0.90,与家系分析结果一致。根据两种分析结果,表明腹股沟斜疝为常染色体显性从性遗传,不完全外显,外显率为0.90～0.9058. According to a survey of 57 pedigrees of surgical treatment of inguinal hernia, 135 patients were found, including 124 males and 11 females. The ratio of males to females is 13.6: 1. Pedigree analysis showed that male patients with segregation ratio p = 0.4529, penetrance was 0.9058. Using the mathematical model of separation analysis computer program analysis, the separation ratio p = 0.45. The penetrance was 0.90, consistent with the pedigree analysis. According to the results of two kinds of analysis, indirect hernia inguinal hernia is autosomal dominant inheritance, not completely explicit, the penetrance is 0.90 ~ 0.9058.