通过对２０８例鼻咽癌病人和２０５例健康人的调查分析，发现鼻咽癌病人有癌症家族史者占３７．５％，健康人占４．９％，两者相比有极显著性差异（Ｐ＜０．００５）。说明遗传因素在鼻咽癌中起一定作用。提示对鼻咽癌患者血缘亲属应定期检查鼻咽部与血清学监测随诊，可发现家族中早期鼻咽癌，并及早治疗以提高治愈率。 Through investigation and analysis of 208 patients with nasopharyngeal carcinoma and 205 healthy individuals, it was found that 37.5% of patients with cancer of the nasopharyngeal carcinoma had a family history, and 4.9% of healthy people had significant differences. (P<0.005). It shows that genetic factors play a role in nasopharyngeal carcinoma. It is suggested that blood relatives of patients with nasopharyngeal carcinoma should be regularly examined by nasopharyngeal and serological monitoring followed by early detection of family nasopharyngeal carcinoma and early treatment to improve the cure rate.