Abstract  A retrospective study of one year from 1^st January 2015 to 31^st December 2015 was undertaken to determine the histopathological spectrum of various breast lesions. The objective of the study was to estimate the frequency of breast lesions in Department of pathology, Government Thiruvarur Medical College, Thiruvarur, a tertiary care centre with different age groups. Clinical features and histopathological findings were studied in 129 cases. Out of 129 cases, benign lesions constituted 77.5% and malignant constituted 22.5%. The commonest benign tumor was fibroadenoma and the commonest malignant tumor was infiltrating ductal carcinoma – NOS type. About 13.2% of cases were male and 86.8% were female in this study. The commonest male breast lesion is gynaecomastia.

Keywords: Fibroadenoma, Fibroadenosis, Infiltrating ductal carcinoma, Gynaecomastia.