The study detected 6 types of β - Thalassaemia mutations, namely CD26 (GAG - AAG), CD41/42 (- TCTT), CD17 (AA - TAG) and CD71/72 (+A) with the corresponding rate of 39 .8%, 25.3%, 18.1% and 15.7%, CD 95 (TAC - TAA) accounted for 3.6% and IVS I-1 (G - T) with 1.2%.