To characterize the pathologies diagnosed in patients who attended the breast pathology consultation of the Gynecology Service of the Concepción Palacios Maternity Hospital, period July 2020-July 2021. Methods: Retrospective, cross-sectional, descriptive, case-control study; it included 73 histories of patients with breast pathology and 73 patients with normal breasts. Results: 40 benign lesions (54.8 %), 10 (13.7 %) malignant and 23 cases (31.5 %) not classifiable were diagnosed. Thirty patients (41.1%) had palpable tumor, 24 (32.8%) pain and 42 (57.5%) palpable nodes. In benign lesions, the tumor was soft or relentent (63.6%) and in malignant lesions, indurated (75%) (p=0.007). There was orange peel in 2 malignant cases. The risk factor for benign pathology was the use of hormone therapy (p=0.027); having previous abortions (p=0.035), breastfeeding (p=0.049) and smoking (p=0.009) were protective. For cancer, it was age and the use of hormone therapy. In benign lesions, 39 ultrasounds were BIRADS 1, 2 or 3; among the malignant ones, the diagnoses were BIRADS 4, 5 and 6 (p=0.001). Mammograms of malignant cases were BIRADS 4 and 5 (p=0.001). Among 15 fine needle punctures (20.5%), 8 (53.3%) have pending results, 2 (13.3%) were metastatic carcinomas and 2 (13.3%) ductal hyperplasia with atypia. Among the 11 core needle biopsies, 8 (72.7%) were reported as carcinomas. Conclusions: There were 54.8% benign pathology and 13.7% malignant. The characteristics are similar to those described in the literature.To characterize the pathologies diagnosed in patients who attended the breast pathology consultation of the Gynecology Service of the Concepción Palacios Maternity Hospital, period July 2020-July 2021. Methods: Retrospective, cross-sectional, descriptive, case-control study; it included 73 histories of patients with breast pathology and 73 patients with normal breasts. Results: 40 benign lesions (54.8 %), 10 (13.7 %) malignant and 23 cases (31.5 %) not classifiable were diagnosed. Thirty patients (41.1%) had palpable tumor, 24 (32.8%) pain and 42 (57.5%) palpable nodes. In benign lesions, the tumor was soft or relentent (63.6%) and in malignant lesions, indurated (75%) (p=0.007). There was orange peel in 2 malignant cases. The risk factor for benign pathology was the use of hormone therapy (p=0.027); having previous abortions (p=0.035), breastfeeding (p=0.049) and smoking (p=0.009) were protective. For cancer, it was age and the use of hormone therapy. In benign lesions, 39 ultrasounds were BIRADS 1, 2 or 3; among the malignant ones, the diagnoses were BIRADS 4, 5 and 6 (p=0.001). Mammograms of malignant cases were BIRADS 4 and 5 (p=0.001). Among 15 fine needle punctures (20.5%), 8 (53.3%) have pending results, 2 (13.3%) were metastatic carcinomas and 2 (13.3%) ductal hyperplasia with atypia. Among the 11 core needle biopsies, 8 (72.7%) were reported as carcinomas. Conclusions: There were 54.8% benign pathology and 13.7% malignant. The characteristics are similar to those described in the literature.