Abstract: Objective：To analyze the detection trend，age and double breast distribution of invasive carcinoma of no special type.Methods：The pathological data of 5117 patients with breast diseases in the First Affiliated Hospital of Jinzhou Medical University from 2013 to 2018 were retrospectively collected.The data of 1721 women with unilateral breast invasive cancer were collected.The detection trend，age and distribution of double breasts were described and analyzed.Results：The proportion of invasive carcinoma of no special type breast  in breast cancer patients was 75.02%.The detection of breast cancer in the past six years showed an increasing trend.The most common age group was 51～60 years old，followed by 41～50 years old.There was no statistical difference in the detection of left and right breast in different age groups and years（P>0.05）.Conclusion：The prevention and treatment of invasive carcinoma of no special type breast cancer should be emphasized in Jinzhou area；the prevention and education and early screening of breast cancer should be emphasized according to age；the prevention and treatment of left and right breast cancer should be given equal attention.

Key words: invasive carcinoma of no special type, detection trend, distribution characteristics