HYDERABAD: Thalassemia patients participating in a rally arranged by organized by Fatimid Foundation outside Press Club as the world observing World Thalassemia Day. World Thalassemia Day observing every year on 8th of May to increase the awareness about this disease among common public all through the world. Observing World Thalassemia Day on 8th of May established by the World Health Organization in order to raise the public awareness about this disease, prevention measures and measures to avoid its transmission. Thalassemia an autosomal recessive blood disorders which gets inherited from parents to the children through genes. It is a blood disorder causes weakening and destruction of the red blood cells, affects the formation of hemoglobin in the body and causes mild or severe anemia. It causes complications like bone deformities, iron overload, cardiovascular illnesses, heart palpitations, enlarged liver, jaundice, enlarged spleen, enlarged bones of cheeks or forehead, delayed puberty and etc.