Background: Breast cancer one of the most common cancer affecting women health worldwide cancer and cause of death from cancer. Obesity has been related with breast cancer risk. Materials and Methods: For the present study patients of breast tumours who attended surgical outdoor or breast clinic or patients admitted to the surgical wards of Maharana Bhopal Hospital, Udaipur from Jan__ampersandsignrsquo;97 to Jun__ampersandsignrsquo;97 were included. A complete clinical examination and of the patients was done to see the symptoms, clinical manifestations, involvement of tissues etc. Anthropometric measurements of weight and height were measured by the standard equipments and methodology. Results: It was observed 9.57 percent patients were obese and 90.42 percent patients were not obese among benign group, whereas 5.31 percent were obese and 94.11 percent patients were not obese among malignant group. Conclusions: The results of the present study had shown a negative association of overweight and obesity with breast cancer in the southern Rajasthan, India population.