Relationship between ABO blood group and breast cancer at Al-Nassyria city / Iraq

The current study included 200 patients with breast cancer that resemble to patient samples were collected from AL-Nassyria hospital also 279 samples as control which was collected from blood bank at AL-Nassiryia province. The study attempted to correlate ABO blood group with incidence to breast cancer. The results shown that type A of ABO blood group high frequency then followed by type O with in AL-Nassyria region also the results reported that A, B, O and AB blood groups frequencies of patient samples percentage were 60 %, 20 %, 10 % and 10 % respectively as well as the ABO blood groups frequencies of control samples percentage were 26 %, 28 %, 38 % and 8 % respectively. The results observed there are high significant differences between ABO blood group frequencies of cancer patients and ABO blood group frequencies of control samples. The results indicated that the blood type should be considered one of risk factor as well as regarded as preclinical marker.