Sudan is a low-income country in sub-Saharan Africa with a population of approximately 40 million people. Approximately half of the population is living below the poverty line. The Sudanese government spends about 8.43% of its annual gross domestic product (GDP) on healthcare. 4 Healthcare in Sudan is delivered at three levels. At the apex are teaching, general and specialised hospitals providing secondary and tertiary healthcare. In the secondary level Background: Studies of unplanned attendances of cancer patients to outpatient oncology units in limited-resource settings are rare. Aim:The primary aim of the study was to determine the cause of unplanned visits of cancer patients to an outpatient clinic in a limited-resource setting. A secondary aim was to provide an overview of the demographic, clinical characteristics and outcomes of this cohort of patients.