Abdel Salam is a child who had vitamin B12 deficiency, and this disease is considered as a scarce case. Just 13 cases have been diagnosed at health projects affiliated to MAPS in the past three years. His family was left in deep despair because he had been admitted to hospital several times, but his case wasn’t clearly diagnosed. He was only treated by receiving blood transfusion. He appeared to have motor retardation and severe anemia. His case has been diagnosed, followed up and undergone intensive care at Gheras Al-Khair dispensary. A year after initiating treatment, a significant amelioration has been observed represented by increasing his weight by 1.6 kg and elevating hemoglobin to be 11. Abdel Salam has managed to walk in a natural way, and hasn’t received a blood transfusion lately. He is almost never sick and leading a normal life.