目的:比较妊娠和非妊娠期乳腺良性肿瘤的病理特点。方法:对5 a来在我院门诊和住院观察手术的乳腺良性肿瘤患者-妊娠期76例和非孕期475例进行临床分析和统计。结果:非妊娠期乳腺良性肿瘤不同年龄组、妊娠与非妊娠期相同年龄组病理类型不同。结论:妊娠期较非妊娠期乳腺良性肿瘤病理类型好,但在妊娠期可使原来的乳腺良恶性肿瘤加速发展,一旦癌变预后极差。 Objective: To compare the pathological features of benign and malignant breast tumors in pregnancy and non-pregnancy. Methods: The clinical data and statistics of 5 cases of breast benign tumor in clinic and inpatient observation for 5 years in our hospital were 76 cases of pregnancy and 475 cases of non-pregnancy. Results: The non-pregnant benign breast tumors in different age groups, pregnant and non-pregnant same age group of different pathological types. Conclusion: The pathological types of benign breast tumors in pregnancy are better than non-pregnant benign tumors. However, benign and malignant tumors of the breast can be accelerated during pregnancy, once the prognosis of cancer is extremely poor.