Objective: To ascertain influencing factors and breast examination practices among student nurses in Warri, Delta state. Design: Cross-sectional survey.

Setting: State School of Nursing, Warri, Delta State. Subjects: Two hundred and ninety six student nurses attending the school in 2010 with exclusion of introductory students.

Results: Self breast examination was practiced by four-fifths(79.39%) of respondents; of the self breast examination practitioners, 88.52% had a monthly self breast exam. Clinical breast examination had been utilized by one-sixth (17.35%) of respondents. Self perception of proficiency at self breast examination was agreed to by four-fifths(82.35%) of respondents. About a third (21.6%) knew a family member or friend with breast cancer while a fourth (26.71%) had breast complaints in the past requiring Physician consultation. A previous breast procedure was admitted to by a fourth(24.01%) of respondents. There was a strong positive association between self breast examination and previous breast procedure, p