Cancer register in the Wilaya of Batna is a population based register that covers 1,173,852 inhabitants in 2011 (estimation made with a rate of population increase of 1.58% beginning from the 2008 RGPH census). A total number of 768 new cases has been identified, which represents a standardized incidence of 78.2 cases per 100,000. The most prevalent cancers in males were lung cancer (12.2 cases / 100,000 inhabitants), colorectal cancers and bladder cancers, respectively. In females, breast cancer was largely the most prevakent type, representing 30% of the total cancers, followed by colorectal cancers and thyroid cancer. In children aged 0 to 14, the standardized prevalence was 1.9 per 100,000 inhabitants, largely dominated by malignant blood and lymphoid organs cancers.